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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2003 - 2009 NetXen, Inc.
4 * Copyright (C) 2009 - QLogic Corporation.
5 * All rights reserved.
6 */
7
8#include <linux/slab.h>
9#include <linux/vmalloc.h>
10#include <linux/interrupt.h>
11#include "netxen_nic_hw.h"
12
13#include "netxen_nic.h"
14
15#include <linux/dma-mapping.h>
16#include <linux/if_vlan.h>
17#include <net/ip.h>
18#include <linux/ipv6.h>
19#include <linux/inetdevice.h>
20#include <linux/sysfs.h>
21
22MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
23MODULE_LICENSE("GPL");
24MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
25MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
26
27char netxen_nic_driver_name[] = "netxen_nic";
28static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
29 NETXEN_NIC_LINUX_VERSIONID;
30
31static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
32
33/* Default to restricted 1G auto-neg mode */
34static int wol_port_mode = 5;
35
36static int use_msi = 1;
37
38static int use_msi_x = 1;
39
40static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
41module_param(auto_fw_reset, int, 0644);
42MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
43
44static int netxen_nic_probe(struct pci_dev *pdev,
45 const struct pci_device_id *ent);
46static void netxen_nic_remove(struct pci_dev *pdev);
47static int netxen_nic_open(struct net_device *netdev);
48static int netxen_nic_close(struct net_device *netdev);
49static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
50 struct net_device *);
51static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue);
52static void netxen_tx_timeout_task(struct work_struct *work);
53static void netxen_fw_poll_work(struct work_struct *work);
54static void netxen_schedule_work(struct netxen_adapter *adapter,
55 work_func_t func, int delay);
56static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
57static int netxen_nic_poll(struct napi_struct *napi, int budget);
58
59static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
60static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
61static void netxen_create_diag_entries(struct netxen_adapter *adapter);
62static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
63static int nx_dev_request_aer(struct netxen_adapter *adapter);
64static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
65static int netxen_can_start_firmware(struct netxen_adapter *adapter);
66
67static irqreturn_t netxen_intr(int irq, void *data);
68static irqreturn_t netxen_msi_intr(int irq, void *data);
69static irqreturn_t netxen_msix_intr(int irq, void *data);
70
71static void netxen_free_ip_list(struct netxen_adapter *, bool);
72static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
73static void netxen_nic_get_stats(struct net_device *dev,
74 struct rtnl_link_stats64 *stats);
75static int netxen_nic_set_mac(struct net_device *netdev, void *p);
76
77/* PCI Device ID Table */
78#define ENTRY(device) \
79 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
80 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
81
82static const struct pci_device_id netxen_pci_tbl[] = {
83 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
84 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
85 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
86 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
87 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
88 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
89 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
90 ENTRY(PCI_DEVICE_ID_NX3031),
91 {0,}
92};
93
94MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
95
96static uint32_t crb_cmd_producer[4] = {
97 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
98 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
99};
100
101void
102netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
103 struct nx_host_tx_ring *tx_ring)
104{
105 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
106}
107
108static uint32_t crb_cmd_consumer[4] = {
109 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
110 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
111};
112
113static inline void
114netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
115 struct nx_host_tx_ring *tx_ring)
116{
117 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
118}
119
120static uint32_t msi_tgt_status[8] = {
121 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
122 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
123 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
124 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
125};
126
127static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
128
129static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
130{
131 struct netxen_adapter *adapter = sds_ring->adapter;
132
133 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
134}
135
136static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
137{
138 struct netxen_adapter *adapter = sds_ring->adapter;
139
140 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
141
142 if (!NETXEN_IS_MSI_FAMILY(adapter))
143 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
144}
145
146static int
147netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
148{
149 int size = sizeof(struct nx_host_sds_ring) * count;
150
151 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
152
153 return recv_ctx->sds_rings == NULL;
154}
155
156static void
157netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
158{
159 kfree(recv_ctx->sds_rings);
160 recv_ctx->sds_rings = NULL;
161}
162
163static int
164netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
165{
166 int ring;
167 struct nx_host_sds_ring *sds_ring;
168 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
169
170 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
171 return -ENOMEM;
172
173 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
174 sds_ring = &recv_ctx->sds_rings[ring];
175 netif_napi_add(netdev, &sds_ring->napi, netxen_nic_poll);
176 }
177
178 return 0;
179}
180
181static void
182netxen_napi_del(struct netxen_adapter *adapter)
183{
184 int ring;
185 struct nx_host_sds_ring *sds_ring;
186 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
187
188 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
189 sds_ring = &recv_ctx->sds_rings[ring];
190 netif_napi_del(&sds_ring->napi);
191 }
192
193 netxen_free_sds_rings(&adapter->recv_ctx);
194}
195
196static void
197netxen_napi_enable(struct netxen_adapter *adapter)
198{
199 int ring;
200 struct nx_host_sds_ring *sds_ring;
201 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
202
203 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
204 sds_ring = &recv_ctx->sds_rings[ring];
205 napi_enable(&sds_ring->napi);
206 netxen_nic_enable_int(sds_ring);
207 }
208}
209
210static void
211netxen_napi_disable(struct netxen_adapter *adapter)
212{
213 int ring;
214 struct nx_host_sds_ring *sds_ring;
215 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
216
217 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
218 sds_ring = &recv_ctx->sds_rings[ring];
219 netxen_nic_disable_int(sds_ring);
220 napi_synchronize(&sds_ring->napi);
221 napi_disable(&sds_ring->napi);
222 }
223}
224
225static int nx_set_dma_mask(struct netxen_adapter *adapter)
226{
227 struct pci_dev *pdev = adapter->pdev;
228 uint64_t mask, cmask;
229
230 adapter->pci_using_dac = 0;
231
232 mask = DMA_BIT_MASK(32);
233 cmask = DMA_BIT_MASK(32);
234
235 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
236 mask = DMA_BIT_MASK(35);
237 } else {
238 mask = DMA_BIT_MASK(39);
239 cmask = mask;
240 }
241
242 if (dma_set_mask(&pdev->dev, mask) == 0 &&
243 dma_set_coherent_mask(&pdev->dev, cmask) == 0) {
244 adapter->pci_using_dac = 1;
245 return 0;
246 }
247
248 return -EIO;
249}
250
251/* Update addressable range if firmware supports it */
252static int
253nx_update_dma_mask(struct netxen_adapter *adapter)
254{
255 int change, shift, err;
256 uint64_t mask, old_mask, old_cmask;
257 struct pci_dev *pdev = adapter->pdev;
258
259 change = 0;
260
261 shift = NXRD32(adapter, CRB_DMA_SHIFT);
262 if (shift > 32)
263 return 0;
264
265 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
266 change = 1;
267 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
268 change = 1;
269
270 if (change) {
271 old_mask = pdev->dma_mask;
272 old_cmask = pdev->dev.coherent_dma_mask;
273
274 mask = DMA_BIT_MASK(32+shift);
275
276 err = dma_set_mask(&pdev->dev, mask);
277 if (err)
278 goto err_out;
279
280 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
281
282 err = dma_set_coherent_mask(&pdev->dev, mask);
283 if (err)
284 goto err_out;
285 }
286 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
287 }
288
289 return 0;
290
291err_out:
292 dma_set_mask(&pdev->dev, old_mask);
293 dma_set_coherent_mask(&pdev->dev, old_cmask);
294 return err;
295}
296
297static int
298netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
299{
300 u32 val, timeout;
301
302 if (first_boot == 0x55555555) {
303 /* This is the first boot after power up */
304 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
305
306 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
307 return 0;
308
309 /* PCI bus master workaround */
310 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
311 if (!(first_boot & 0x4)) {
312 first_boot |= 0x4;
313 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
314 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
315 }
316
317 /* This is the first boot after power up */
318 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
319 if (first_boot != 0x80000f) {
320 /* clear the register for future unloads/loads */
321 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
322 return -EIO;
323 }
324
325 /* Start P2 boot loader */
326 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
327 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
328 timeout = 0;
329 do {
330 msleep(1);
331 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
332
333 if (++timeout > 5000)
334 return -EIO;
335
336 } while (val == NETXEN_BDINFO_MAGIC);
337 }
338 return 0;
339}
340
341static void netxen_set_port_mode(struct netxen_adapter *adapter)
342{
343 u32 val, data;
344
345 val = adapter->ahw.board_type;
346 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
347 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
348 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
349 data = NETXEN_PORT_MODE_802_3_AP;
350 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
351 } else if (port_mode == NETXEN_PORT_MODE_XG) {
352 data = NETXEN_PORT_MODE_XG;
353 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
354 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
355 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
356 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
357 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
358 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
359 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
360 } else {
361 data = NETXEN_PORT_MODE_AUTO_NEG;
362 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
363 }
364
365 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
366 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
367 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
368 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
369 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
370 }
371 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
372 }
373}
374
375#define PCI_CAP_ID_GEN 0x10
376
377static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
378{
379 u32 pdevfuncsave;
380 u32 c8c9value = 0;
381 u32 chicken = 0;
382 u32 control = 0;
383 int i, pos;
384 struct pci_dev *pdev;
385
386 pdev = adapter->pdev;
387
388 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
389 /* clear chicken3.25:24 */
390 chicken &= 0xFCFFFFFF;
391 /*
392 * if gen1 and B0, set F1020 - if gen 2, do nothing
393 * if gen2 set to F1000
394 */
395 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
396 if (pos == 0xC0) {
397 pci_read_config_dword(pdev, pos + 0x10, &control);
398 if ((control & 0x000F0000) != 0x00020000) {
399 /* set chicken3.24 if gen1 */
400 chicken |= 0x01000000;
401 }
402 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
403 c8c9value = 0xF1000;
404 } else {
405 /* set chicken3.24 if gen1 */
406 chicken |= 0x01000000;
407 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
408 if (adapter->ahw.revision_id == NX_P3_B0)
409 c8c9value = 0xF1020;
410 else
411 c8c9value = 0;
412 }
413
414 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
415
416 if (!c8c9value)
417 return;
418
419 pdevfuncsave = pdev->devfn;
420 if (pdevfuncsave & 0x07)
421 return;
422
423 for (i = 0; i < 8; i++) {
424 pci_read_config_dword(pdev, pos + 8, &control);
425 pci_read_config_dword(pdev, pos + 8, &control);
426 pci_write_config_dword(pdev, pos + 8, c8c9value);
427 pdev->devfn++;
428 }
429 pdev->devfn = pdevfuncsave;
430}
431
432static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
433{
434 u32 control;
435
436 if (pdev->msix_cap) {
437 pci_read_config_dword(pdev, pdev->msix_cap, &control);
438 if (enable)
439 control |= PCI_MSIX_FLAGS_ENABLE;
440 else
441 control = 0;
442 pci_write_config_dword(pdev, pdev->msix_cap, control);
443 }
444}
445
446static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
447{
448 int i;
449
450 for (i = 0; i < count; i++)
451 adapter->msix_entries[i].entry = i;
452}
453
454static int
455netxen_read_mac_addr(struct netxen_adapter *adapter)
456{
457 int i;
458 unsigned char *p;
459 u64 mac_addr;
460 struct net_device *netdev = adapter->netdev;
461 struct pci_dev *pdev = adapter->pdev;
462 u8 addr[ETH_ALEN];
463
464 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
465 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
466 return -EIO;
467 } else {
468 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
469 return -EIO;
470 }
471
472 p = (unsigned char *)&mac_addr;
473 for (i = 0; i < 6; i++)
474 addr[i] = *(p + 5 - i);
475 eth_hw_addr_set(netdev, addr);
476
477 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
478
479 /* set station address */
480
481 if (!is_valid_ether_addr(netdev->dev_addr))
482 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
483
484 return 0;
485}
486
487static int netxen_nic_set_mac(struct net_device *netdev, void *p)
488{
489 struct netxen_adapter *adapter = netdev_priv(netdev);
490 struct sockaddr *addr = p;
491
492 if (!is_valid_ether_addr(addr->sa_data))
493 return -EADDRNOTAVAIL;
494
495 if (netif_running(netdev)) {
496 netif_device_detach(netdev);
497 netxen_napi_disable(adapter);
498 }
499
500 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
501 eth_hw_addr_set(netdev, addr->sa_data);
502 adapter->macaddr_set(adapter, addr->sa_data);
503
504 if (netif_running(netdev)) {
505 netif_device_attach(netdev);
506 netxen_napi_enable(adapter);
507 }
508 return 0;
509}
510
511static void netxen_set_multicast_list(struct net_device *dev)
512{
513 struct netxen_adapter *adapter = netdev_priv(dev);
514
515 adapter->set_multi(dev);
516}
517
518static netdev_features_t netxen_fix_features(struct net_device *dev,
519 netdev_features_t features)
520{
521 if (!(features & NETIF_F_RXCSUM)) {
522 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
523
524 features &= ~NETIF_F_LRO;
525 }
526
527 return features;
528}
529
530static int netxen_set_features(struct net_device *dev,
531 netdev_features_t features)
532{
533 struct netxen_adapter *adapter = netdev_priv(dev);
534 int hw_lro;
535
536 if (!((dev->features ^ features) & NETIF_F_LRO))
537 return 0;
538
539 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
540 : NETXEN_NIC_LRO_DISABLED;
541
542 if (netxen_config_hw_lro(adapter, hw_lro))
543 return -EIO;
544
545 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
546 return -EIO;
547
548 return 0;
549}
550
551static const struct net_device_ops netxen_netdev_ops = {
552 .ndo_open = netxen_nic_open,
553 .ndo_stop = netxen_nic_close,
554 .ndo_start_xmit = netxen_nic_xmit_frame,
555 .ndo_get_stats64 = netxen_nic_get_stats,
556 .ndo_validate_addr = eth_validate_addr,
557 .ndo_set_rx_mode = netxen_set_multicast_list,
558 .ndo_set_mac_address = netxen_nic_set_mac,
559 .ndo_change_mtu = netxen_nic_change_mtu,
560 .ndo_tx_timeout = netxen_tx_timeout,
561 .ndo_fix_features = netxen_fix_features,
562 .ndo_set_features = netxen_set_features,
563};
564
565static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
566 u32 mode)
567{
568 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
569}
570
571static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
572{
573 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
574}
575
576static void
577netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
578{
579 struct netxen_legacy_intr_set *legacy_intrp;
580 u32 tgt_status_reg, int_state_reg;
581
582 if (adapter->ahw.revision_id >= NX_P3_B0)
583 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
584 else
585 legacy_intrp = &legacy_intr[0];
586
587 tgt_status_reg = legacy_intrp->tgt_status_reg;
588 int_state_reg = ISR_INT_STATE_REG;
589
590 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
591 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
592 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
593 legacy_intrp->tgt_mask_reg);
594 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
595 legacy_intrp->pci_int_reg);
596 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
597
598 if (adapter->ahw.revision_id >= NX_P3_B1)
599 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
600 int_state_reg);
601 else
602 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
603 CRB_INT_VECTOR);
604}
605
606static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
607 int num_msix)
608{
609 struct pci_dev *pdev = adapter->pdev;
610 u32 value;
611 int err;
612
613 if (adapter->msix_supported) {
614 netxen_init_msix_entries(adapter, num_msix);
615 err = pci_enable_msix_range(pdev, adapter->msix_entries,
616 num_msix, num_msix);
617 if (err > 0) {
618 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
619 netxen_set_msix_bit(pdev, 1);
620
621 if (adapter->rss_supported)
622 adapter->max_sds_rings = num_msix;
623
624 dev_info(&pdev->dev, "using msi-x interrupts\n");
625 return 0;
626 }
627 /* fall through for msi */
628 }
629
630 if (use_msi && !pci_enable_msi(pdev)) {
631 value = msi_tgt_status[adapter->ahw.pci_func];
632 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
633 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
634 adapter->msix_entries[0].vector = pdev->irq;
635 dev_info(&pdev->dev, "using msi interrupts\n");
636 return 0;
637 }
638
639 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
640 return -EIO;
641}
642
643static int netxen_setup_intr(struct netxen_adapter *adapter)
644{
645 struct pci_dev *pdev = adapter->pdev;
646 int num_msix;
647
648 if (adapter->rss_supported)
649 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
650 MSIX_ENTRIES_PER_ADAPTER : 2;
651 else
652 num_msix = 1;
653
654 adapter->max_sds_rings = 1;
655 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
656
657 netxen_initialize_interrupt_registers(adapter);
658 netxen_set_msix_bit(pdev, 0);
659
660 if (adapter->portnum == 0) {
661 if (!netxen_setup_msi_interrupts(adapter, num_msix))
662 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
663 else
664 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
665 } else {
666 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
667 netxen_setup_msi_interrupts(adapter, num_msix)) {
668 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
669 return -EIO;
670 }
671 }
672
673 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
674 adapter->msix_entries[0].vector = pdev->irq;
675 dev_info(&pdev->dev, "using legacy interrupts\n");
676 }
677 return 0;
678}
679
680static void
681netxen_teardown_intr(struct netxen_adapter *adapter)
682{
683 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
684 pci_disable_msix(adapter->pdev);
685 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
686 pci_disable_msi(adapter->pdev);
687}
688
689static void
690netxen_cleanup_pci_map(struct netxen_adapter *adapter)
691{
692 if (adapter->ahw.db_base != NULL)
693 iounmap(adapter->ahw.db_base);
694 if (adapter->ahw.pci_base0 != NULL)
695 iounmap(adapter->ahw.pci_base0);
696 if (adapter->ahw.pci_base1 != NULL)
697 iounmap(adapter->ahw.pci_base1);
698 if (adapter->ahw.pci_base2 != NULL)
699 iounmap(adapter->ahw.pci_base2);
700}
701
702static int
703netxen_setup_pci_map(struct netxen_adapter *adapter)
704{
705 void __iomem *db_ptr = NULL;
706
707 resource_size_t mem_base, db_base;
708 unsigned long mem_len, db_len = 0;
709
710 struct pci_dev *pdev = adapter->pdev;
711 int pci_func = adapter->ahw.pci_func;
712 struct netxen_hardware_context *ahw = &adapter->ahw;
713
714 int err = 0;
715
716 /*
717 * Set the CRB window to invalid. If any register in window 0 is
718 * accessed it should set the window to 0 and then reset it to 1.
719 */
720 adapter->ahw.crb_win = -1;
721 adapter->ahw.ocm_win = -1;
722
723 /* remap phys address */
724 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
725 mem_len = pci_resource_len(pdev, 0);
726
727 /* 128 Meg of memory */
728 if (mem_len == NETXEN_PCI_128MB_SIZE) {
729
730 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
731 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
732 SECOND_PAGE_GROUP_SIZE);
733 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
734 THIRD_PAGE_GROUP_SIZE);
735 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
736 ahw->pci_base2 == NULL) {
737 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
738 err = -EIO;
739 goto err_out;
740 }
741
742 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
743
744 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
745
746 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
747 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
748 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
749 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
750 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
751 err = -EIO;
752 goto err_out;
753 }
754
755 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
756
757 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
758 if (ahw->pci_base0 == NULL) {
759 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
760 return -EIO;
761 }
762 ahw->pci_len0 = mem_len;
763 } else {
764 return -EIO;
765 }
766
767 netxen_setup_hwops(adapter);
768
769 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
770
771 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
772 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
773 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
774
775 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
776 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
777 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
778 }
779
780 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
781 goto skip_doorbell;
782
783 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
784 db_len = pci_resource_len(pdev, 4);
785
786 if (db_len == 0) {
787 printk(KERN_ERR "%s: doorbell is disabled\n",
788 netxen_nic_driver_name);
789 err = -EIO;
790 goto err_out;
791 }
792
793 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
794 if (!db_ptr) {
795 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
796 netxen_nic_driver_name);
797 err = -EIO;
798 goto err_out;
799 }
800
801skip_doorbell:
802 adapter->ahw.db_base = db_ptr;
803 adapter->ahw.db_len = db_len;
804 return 0;
805
806err_out:
807 netxen_cleanup_pci_map(adapter);
808 return err;
809}
810
811static void
812netxen_check_options(struct netxen_adapter *adapter)
813{
814 u32 fw_major, fw_minor, fw_build, prev_fw_version;
815 char brd_name[NETXEN_MAX_SHORT_NAME];
816 char serial_num[32];
817 int i, offset, val, err;
818 __le32 *ptr32;
819 struct pci_dev *pdev = adapter->pdev;
820
821 adapter->driver_mismatch = 0;
822
823 ptr32 = (__le32 *)&serial_num;
824 offset = NX_FW_SERIAL_NUM_OFFSET;
825 for (i = 0; i < 8; i++) {
826 err = netxen_rom_fast_read(adapter, offset, &val);
827 if (err) {
828 dev_err(&pdev->dev, "error reading board info\n");
829 adapter->driver_mismatch = 1;
830 return;
831 }
832 ptr32[i] = cpu_to_le32(val);
833 offset += sizeof(u32);
834 }
835
836 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
837 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
838 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
839 prev_fw_version = adapter->fw_version;
840 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
841
842 /* Get FW Mini Coredump template and store it */
843 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
844 if (adapter->mdump.md_template == NULL ||
845 adapter->fw_version > prev_fw_version) {
846 kfree(adapter->mdump.md_template);
847 adapter->mdump.md_template = NULL;
848 err = netxen_setup_minidump(adapter);
849 if (err)
850 dev_err(&adapter->pdev->dev,
851 "Failed to setup minidump rcode = %d\n", err);
852 }
853 }
854
855 if (adapter->portnum == 0) {
856 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
857 brd_name))
858 strcpy(serial_num, "Unknown");
859
860 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
861 module_name(THIS_MODULE),
862 brd_name, serial_num, adapter->ahw.revision_id);
863 }
864
865 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
866 adapter->driver_mismatch = 1;
867 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
868 fw_major, fw_minor, fw_build);
869 return;
870 }
871
872 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
873 i = NXRD32(adapter, NETXEN_SRE_MISC);
874 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
875 }
876
877 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
878 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
879 adapter->ahw.cut_through ? "cut-through" : "legacy");
880
881 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
882 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
883
884 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
885 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
886 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
887 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
888 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
889 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
890 }
891
892 adapter->msix_supported = 0;
893 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
894 adapter->msix_supported = !!use_msi_x;
895 adapter->rss_supported = !!use_msi_x;
896 } else {
897 u32 flashed_ver = 0;
898 netxen_rom_fast_read(adapter,
899 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
900 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
901
902 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
903 switch (adapter->ahw.board_type) {
904 case NETXEN_BRDTYPE_P2_SB31_10G:
905 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
906 adapter->msix_supported = !!use_msi_x;
907 adapter->rss_supported = !!use_msi_x;
908 break;
909 default:
910 break;
911 }
912 }
913 }
914
915 adapter->num_txd = MAX_CMD_DESCRIPTORS;
916
917 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
918 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
919 adapter->max_rds_rings = 3;
920 } else {
921 adapter->num_lro_rxd = 0;
922 adapter->max_rds_rings = 2;
923 }
924}
925
926static int
927netxen_start_firmware(struct netxen_adapter *adapter)
928{
929 int val, err, first_boot;
930 struct pci_dev *pdev = adapter->pdev;
931
932 /* required for NX2031 dummy dma */
933 err = nx_set_dma_mask(adapter);
934 if (err)
935 return err;
936
937 err = netxen_can_start_firmware(adapter);
938
939 if (err < 0)
940 return err;
941
942 if (!err)
943 goto wait_init;
944
945 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
946
947 err = netxen_check_hw_init(adapter, first_boot);
948 if (err) {
949 dev_err(&pdev->dev, "error in init HW init sequence\n");
950 return err;
951 }
952
953 netxen_request_firmware(adapter);
954
955 err = netxen_need_fw_reset(adapter);
956 if (err < 0)
957 goto err_out;
958 if (err == 0)
959 goto pcie_strap_init;
960
961 if (first_boot != 0x55555555) {
962 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
963 netxen_pinit_from_rom(adapter);
964 msleep(1);
965 }
966
967 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
968 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
969 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
970
971 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
972 netxen_set_port_mode(adapter);
973
974 err = netxen_load_firmware(adapter);
975 if (err)
976 goto err_out;
977
978 netxen_release_firmware(adapter);
979
980 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
981
982 /* Initialize multicast addr pool owners */
983 val = 0x7654;
984 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
985 val |= 0x0f000000;
986 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
987
988 }
989
990 err = netxen_init_dummy_dma(adapter);
991 if (err)
992 goto err_out;
993
994 /*
995 * Tell the hardware our version number.
996 */
997 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
998 | ((_NETXEN_NIC_LINUX_MINOR << 8))
999 | (_NETXEN_NIC_LINUX_SUBVERSION);
1000 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1001
1002pcie_strap_init:
1003 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1004 netxen_pcie_strap_init(adapter);
1005
1006wait_init:
1007 /* Handshake with the card before we register the devices. */
1008 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1009 if (err) {
1010 netxen_free_dummy_dma(adapter);
1011 goto err_out;
1012 }
1013
1014 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1015
1016 nx_update_dma_mask(adapter);
1017
1018 netxen_check_options(adapter);
1019
1020 adapter->need_fw_reset = 0;
1021
1022 /* fall through and release firmware */
1023
1024err_out:
1025 netxen_release_firmware(adapter);
1026 return err;
1027}
1028
1029static int
1030netxen_nic_request_irq(struct netxen_adapter *adapter)
1031{
1032 irq_handler_t handler;
1033 struct nx_host_sds_ring *sds_ring;
1034 int err, ring;
1035
1036 unsigned long flags = 0;
1037 struct net_device *netdev = adapter->netdev;
1038 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1039
1040 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1041 handler = netxen_msix_intr;
1042 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1043 handler = netxen_msi_intr;
1044 else {
1045 flags |= IRQF_SHARED;
1046 handler = netxen_intr;
1047 }
1048 adapter->irq = netdev->irq;
1049
1050 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1051 sds_ring = &recv_ctx->sds_rings[ring];
1052 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1053 err = request_irq(sds_ring->irq, handler,
1054 flags, sds_ring->name, sds_ring);
1055 if (err)
1056 return err;
1057 }
1058
1059 return 0;
1060}
1061
1062static void
1063netxen_nic_free_irq(struct netxen_adapter *adapter)
1064{
1065 int ring;
1066 struct nx_host_sds_ring *sds_ring;
1067
1068 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1069
1070 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1071 sds_ring = &recv_ctx->sds_rings[ring];
1072 free_irq(sds_ring->irq, sds_ring);
1073 }
1074}
1075
1076static void
1077netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1078{
1079 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1080 adapter->coal.normal.data.rx_time_us =
1081 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1082 adapter->coal.normal.data.rx_packets =
1083 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1084 adapter->coal.normal.data.tx_time_us =
1085 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1086 adapter->coal.normal.data.tx_packets =
1087 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1088}
1089
1090/* with rtnl_lock */
1091static int
1092__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1093{
1094 int err;
1095
1096 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1097 return -EIO;
1098
1099 err = adapter->init_port(adapter, adapter->physical_port);
1100 if (err) {
1101 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1102 netxen_nic_driver_name, adapter->portnum);
1103 return err;
1104 }
1105 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1106 adapter->macaddr_set(adapter, adapter->mac_addr);
1107
1108 adapter->set_multi(netdev);
1109 adapter->set_mtu(adapter, netdev->mtu);
1110
1111 adapter->ahw.linkup = 0;
1112
1113 if (adapter->max_sds_rings > 1)
1114 netxen_config_rss(adapter, 1);
1115
1116 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1117 netxen_config_intr_coalesce(adapter);
1118
1119 if (netdev->features & NETIF_F_LRO)
1120 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1121
1122 netxen_napi_enable(adapter);
1123
1124 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1125 netxen_linkevent_request(adapter, 1);
1126 else
1127 netxen_nic_set_link_parameters(adapter);
1128
1129 set_bit(__NX_DEV_UP, &adapter->state);
1130 return 0;
1131}
1132
1133/* Usage: During resume and firmware recovery module.*/
1134
1135static inline int
1136netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1137{
1138 int err = 0;
1139
1140 rtnl_lock();
1141 if (netif_running(netdev))
1142 err = __netxen_nic_up(adapter, netdev);
1143 rtnl_unlock();
1144
1145 return err;
1146}
1147
1148/* with rtnl_lock */
1149static void
1150__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1151{
1152 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1153 return;
1154
1155 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1156 return;
1157
1158 smp_mb();
1159 netif_carrier_off(netdev);
1160 netif_tx_disable(netdev);
1161
1162 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1163 netxen_linkevent_request(adapter, 0);
1164
1165 if (adapter->stop_port)
1166 adapter->stop_port(adapter);
1167
1168 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1169 netxen_p3_free_mac_list(adapter);
1170
1171 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1172
1173 netxen_napi_disable(adapter);
1174
1175 netxen_release_tx_buffers(adapter);
1176}
1177
1178/* Usage: During suspend and firmware recovery module */
1179
1180static inline void
1181netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1182{
1183 rtnl_lock();
1184 if (netif_running(netdev))
1185 __netxen_nic_down(adapter, netdev);
1186 rtnl_unlock();
1187
1188}
1189
1190static int
1191netxen_nic_attach(struct netxen_adapter *adapter)
1192{
1193 struct net_device *netdev = adapter->netdev;
1194 struct pci_dev *pdev = adapter->pdev;
1195 int err, ring;
1196 struct nx_host_rds_ring *rds_ring;
1197 struct nx_host_tx_ring *tx_ring;
1198 u32 capab2;
1199
1200 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1201 return 0;
1202
1203 err = netxen_init_firmware(adapter);
1204 if (err)
1205 return err;
1206
1207 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1208 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1209 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1210 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1211 adapter->flags |= NETXEN_FW_MSS_CAP;
1212 }
1213
1214 err = netxen_napi_add(adapter, netdev);
1215 if (err)
1216 return err;
1217
1218 err = netxen_alloc_sw_resources(adapter);
1219 if (err) {
1220 printk(KERN_ERR "%s: Error in setting sw resources\n",
1221 netdev->name);
1222 return err;
1223 }
1224
1225 err = netxen_alloc_hw_resources(adapter);
1226 if (err) {
1227 printk(KERN_ERR "%s: Error in setting hw resources\n",
1228 netdev->name);
1229 goto err_out_free_sw;
1230 }
1231
1232 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1233 tx_ring = adapter->tx_ring;
1234 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1235 crb_cmd_producer[adapter->portnum]);
1236 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1237 crb_cmd_consumer[adapter->portnum]);
1238
1239 tx_ring->producer = 0;
1240 tx_ring->sw_consumer = 0;
1241
1242 netxen_nic_update_cmd_producer(adapter, tx_ring);
1243 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1244 }
1245
1246 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1247 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1248 netxen_post_rx_buffers(adapter, ring, rds_ring);
1249 }
1250
1251 err = netxen_nic_request_irq(adapter);
1252 if (err) {
1253 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1254 netdev->name);
1255 goto err_out_free_rxbuf;
1256 }
1257
1258 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1259 netxen_nic_init_coalesce_defaults(adapter);
1260
1261 netxen_create_sysfs_entries(adapter);
1262
1263 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1264 return 0;
1265
1266err_out_free_rxbuf:
1267 netxen_release_rx_buffers(adapter);
1268 netxen_free_hw_resources(adapter);
1269err_out_free_sw:
1270 netxen_free_sw_resources(adapter);
1271 return err;
1272}
1273
1274static void
1275netxen_nic_detach(struct netxen_adapter *adapter)
1276{
1277 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1278 return;
1279
1280 netxen_remove_sysfs_entries(adapter);
1281
1282 netxen_free_hw_resources(adapter);
1283 netxen_release_rx_buffers(adapter);
1284 netxen_nic_free_irq(adapter);
1285 netxen_napi_del(adapter);
1286 netxen_free_sw_resources(adapter);
1287
1288 adapter->is_up = 0;
1289}
1290
1291int
1292netxen_nic_reset_context(struct netxen_adapter *adapter)
1293{
1294 int err = 0;
1295 struct net_device *netdev = adapter->netdev;
1296
1297 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1298 return -EBUSY;
1299
1300 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1301
1302 netif_device_detach(netdev);
1303
1304 if (netif_running(netdev))
1305 __netxen_nic_down(adapter, netdev);
1306
1307 netxen_nic_detach(adapter);
1308
1309 if (netif_running(netdev)) {
1310 err = netxen_nic_attach(adapter);
1311 if (!err)
1312 err = __netxen_nic_up(adapter, netdev);
1313
1314 if (err)
1315 goto done;
1316 }
1317
1318 netif_device_attach(netdev);
1319 }
1320
1321done:
1322 clear_bit(__NX_RESETTING, &adapter->state);
1323 return err;
1324}
1325
1326static int
1327netxen_setup_netdev(struct netxen_adapter *adapter,
1328 struct net_device *netdev)
1329{
1330 int err = 0;
1331 struct pci_dev *pdev = adapter->pdev;
1332
1333 adapter->mc_enabled = 0;
1334 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1335 adapter->max_mc_count = 38;
1336 else
1337 adapter->max_mc_count = 16;
1338
1339 netdev->netdev_ops = &netxen_netdev_ops;
1340 netdev->watchdog_timeo = 5*HZ;
1341
1342 netxen_nic_change_mtu(netdev, netdev->mtu);
1343
1344 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
1345
1346 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1347 NETIF_F_RXCSUM;
1348
1349 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1350 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1351
1352 netdev->vlan_features |= netdev->hw_features;
1353
1354 if (adapter->pci_using_dac) {
1355 netdev->features |= NETIF_F_HIGHDMA;
1356 netdev->vlan_features |= NETIF_F_HIGHDMA;
1357 }
1358
1359 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1360 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1361
1362 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1363 netdev->hw_features |= NETIF_F_LRO;
1364
1365 netdev->features |= netdev->hw_features;
1366
1367 netdev->irq = adapter->msix_entries[0].vector;
1368
1369 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1370
1371 if (netxen_read_mac_addr(adapter))
1372 dev_warn(&pdev->dev, "failed to read mac addr\n");
1373
1374 netif_carrier_off(netdev);
1375
1376 err = register_netdev(netdev);
1377 if (err) {
1378 dev_err(&pdev->dev, "failed to register net device\n");
1379 return err;
1380 }
1381
1382 return 0;
1383}
1384
1385#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1386#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1387
1388static void netxen_read_ula_info(struct netxen_adapter *adapter)
1389{
1390 u32 temp;
1391
1392 /* Print ULA info only once for an adapter */
1393 if (adapter->portnum != 0)
1394 return;
1395
1396 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1397 switch (temp) {
1398 case NETXEN_ULA_ADAPTER_KEY:
1399 dev_info(&adapter->pdev->dev, "ULA adapter");
1400 break;
1401 case NETXEN_NON_ULA_ADAPTER_KEY:
1402 dev_info(&adapter->pdev->dev, "non ULA adapter");
1403 break;
1404 default:
1405 break;
1406 }
1407
1408 return;
1409}
1410
1411#ifdef CONFIG_PCIEAER
1412static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1413{
1414 struct pci_dev *pdev = adapter->pdev;
1415 struct pci_dev *root = pdev->bus->self;
1416 u32 aer_pos;
1417
1418 /* root bus? */
1419 if (!root)
1420 return;
1421
1422 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1423 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1424 return;
1425
1426 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1427 return;
1428
1429 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1430 if (!aer_pos)
1431 return;
1432
1433 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1434}
1435#endif
1436
1437static int
1438netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1439{
1440 struct net_device *netdev = NULL;
1441 struct netxen_adapter *adapter = NULL;
1442 int i = 0, err;
1443 int pci_func_id = PCI_FUNC(pdev->devfn);
1444 uint8_t revision_id;
1445 u32 val;
1446
1447 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1448 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1449 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1450 return -ENODEV;
1451 }
1452
1453 if ((err = pci_enable_device(pdev)))
1454 return err;
1455
1456 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1457 err = -ENODEV;
1458 goto err_out_disable_pdev;
1459 }
1460
1461 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1462 goto err_out_disable_pdev;
1463
1464 pci_set_master(pdev);
1465
1466 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1467 if(!netdev) {
1468 err = -ENOMEM;
1469 goto err_out_free_res;
1470 }
1471
1472 SET_NETDEV_DEV(netdev, &pdev->dev);
1473
1474 adapter = netdev_priv(netdev);
1475 adapter->netdev = netdev;
1476 adapter->pdev = pdev;
1477 adapter->ahw.pci_func = pci_func_id;
1478
1479 revision_id = pdev->revision;
1480 adapter->ahw.revision_id = revision_id;
1481
1482 rwlock_init(&adapter->ahw.crb_lock);
1483 spin_lock_init(&adapter->ahw.mem_lock);
1484
1485 spin_lock_init(&adapter->tx_clean_lock);
1486 INIT_LIST_HEAD(&adapter->mac_list);
1487 INIT_LIST_HEAD(&adapter->ip_list);
1488
1489 err = netxen_setup_pci_map(adapter);
1490 if (err)
1491 goto err_out_free_netdev;
1492
1493 /* This will be reset for mezz cards */
1494 adapter->portnum = pci_func_id;
1495
1496 err = netxen_nic_get_board_info(adapter);
1497 if (err) {
1498 dev_err(&pdev->dev, "Error getting board config info.\n");
1499 goto err_out_iounmap;
1500 }
1501
1502#ifdef CONFIG_PCIEAER
1503 netxen_mask_aer_correctable(adapter);
1504#endif
1505
1506 /* Mezz cards have PCI function 0,2,3 enabled */
1507 switch (adapter->ahw.board_type) {
1508 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1509 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1510 if (pci_func_id >= 2)
1511 adapter->portnum = pci_func_id - 2;
1512 break;
1513 default:
1514 break;
1515 }
1516
1517 err = netxen_check_flash_fw_compatibility(adapter);
1518 if (err)
1519 goto err_out_iounmap;
1520
1521 if (adapter->portnum == 0) {
1522 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1523 if (val != 0xffffffff && val != 0) {
1524 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1525 adapter->need_fw_reset = 1;
1526 }
1527 }
1528
1529 err = netxen_start_firmware(adapter);
1530 if (err)
1531 goto err_out_decr_ref;
1532
1533 /*
1534 * See if the firmware gave us a virtual-physical port mapping.
1535 */
1536 adapter->physical_port = adapter->portnum;
1537 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1538 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1539 if (i != 0x55555555)
1540 adapter->physical_port = i;
1541 }
1542
1543 /* MTU range: 0 - 8000 (P2) or 9600 (P3) */
1544 netdev->min_mtu = 0;
1545 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1546 netdev->max_mtu = P3_MAX_MTU;
1547 else
1548 netdev->max_mtu = P2_MAX_MTU;
1549
1550 netxen_nic_clear_stats(adapter);
1551
1552 err = netxen_setup_intr(adapter);
1553
1554 if (err) {
1555 dev_err(&adapter->pdev->dev,
1556 "Failed to setup interrupts, error = %d\n", err);
1557 goto err_out_disable_msi;
1558 }
1559
1560 netxen_read_ula_info(adapter);
1561
1562 err = netxen_setup_netdev(adapter, netdev);
1563 if (err)
1564 goto err_out_disable_msi;
1565
1566 pci_set_drvdata(pdev, adapter);
1567
1568 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1569
1570 switch (adapter->ahw.port_type) {
1571 case NETXEN_NIC_GBE:
1572 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1573 adapter->netdev->name);
1574 break;
1575 case NETXEN_NIC_XGBE:
1576 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1577 adapter->netdev->name);
1578 break;
1579 }
1580
1581 netxen_create_diag_entries(adapter);
1582
1583 return 0;
1584
1585err_out_disable_msi:
1586 netxen_teardown_intr(adapter);
1587
1588 netxen_free_dummy_dma(adapter);
1589
1590err_out_decr_ref:
1591 nx_decr_dev_ref_cnt(adapter);
1592
1593err_out_iounmap:
1594 netxen_cleanup_pci_map(adapter);
1595
1596err_out_free_netdev:
1597 free_netdev(netdev);
1598
1599err_out_free_res:
1600 pci_release_regions(pdev);
1601
1602err_out_disable_pdev:
1603 pci_disable_device(pdev);
1604 return err;
1605}
1606
1607static
1608void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1609{
1610 kfree(adapter->mdump.md_template);
1611 adapter->mdump.md_template = NULL;
1612
1613 if (adapter->mdump.md_capture_buff) {
1614 vfree(adapter->mdump.md_capture_buff);
1615 adapter->mdump.md_capture_buff = NULL;
1616 }
1617}
1618
1619static void netxen_nic_remove(struct pci_dev *pdev)
1620{
1621 struct netxen_adapter *adapter;
1622 struct net_device *netdev;
1623
1624 adapter = pci_get_drvdata(pdev);
1625 if (adapter == NULL)
1626 return;
1627
1628 netdev = adapter->netdev;
1629
1630 netxen_cancel_fw_work(adapter);
1631
1632 unregister_netdev(netdev);
1633
1634 cancel_work_sync(&adapter->tx_timeout_task);
1635
1636 netxen_free_ip_list(adapter, false);
1637 netxen_nic_detach(adapter);
1638
1639 nx_decr_dev_ref_cnt(adapter);
1640
1641 if (adapter->portnum == 0)
1642 netxen_free_dummy_dma(adapter);
1643
1644 clear_bit(__NX_RESETTING, &adapter->state);
1645
1646 netxen_teardown_intr(adapter);
1647 netxen_set_interrupt_mode(adapter, 0);
1648 netxen_remove_diag_entries(adapter);
1649
1650 netxen_cleanup_pci_map(adapter);
1651
1652 netxen_release_firmware(adapter);
1653
1654 if (NX_IS_REVISION_P3(pdev->revision))
1655 netxen_cleanup_minidump(adapter);
1656
1657 pci_release_regions(pdev);
1658 pci_disable_device(pdev);
1659
1660 free_netdev(netdev);
1661}
1662
1663static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1664{
1665 struct net_device *netdev = adapter->netdev;
1666
1667 netif_device_detach(netdev);
1668
1669 netxen_cancel_fw_work(adapter);
1670
1671 if (netif_running(netdev))
1672 netxen_nic_down(adapter, netdev);
1673
1674 cancel_work_sync(&adapter->tx_timeout_task);
1675
1676 netxen_nic_detach(adapter);
1677
1678 if (adapter->portnum == 0)
1679 netxen_free_dummy_dma(adapter);
1680
1681 nx_decr_dev_ref_cnt(adapter);
1682
1683 clear_bit(__NX_RESETTING, &adapter->state);
1684}
1685
1686static int netxen_nic_attach_late_func(struct pci_dev *pdev)
1687{
1688 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1689 struct net_device *netdev = adapter->netdev;
1690 int err;
1691
1692 pci_set_master(pdev);
1693
1694 adapter->ahw.crb_win = -1;
1695 adapter->ahw.ocm_win = -1;
1696
1697 err = netxen_start_firmware(adapter);
1698 if (err) {
1699 dev_err(&pdev->dev, "failed to start firmware\n");
1700 return err;
1701 }
1702
1703 if (netif_running(netdev)) {
1704 err = netxen_nic_attach(adapter);
1705 if (err)
1706 goto err_out;
1707
1708 err = netxen_nic_up(adapter, netdev);
1709 if (err)
1710 goto err_out_detach;
1711
1712 netxen_restore_indev_addr(netdev, NETDEV_UP);
1713 }
1714
1715 netif_device_attach(netdev);
1716 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1717 return 0;
1718
1719err_out_detach:
1720 netxen_nic_detach(adapter);
1721err_out:
1722 nx_decr_dev_ref_cnt(adapter);
1723 return err;
1724}
1725
1726static int netxen_nic_attach_func(struct pci_dev *pdev)
1727{
1728 int err;
1729
1730 err = pci_enable_device(pdev);
1731 if (err)
1732 return err;
1733
1734 pci_set_power_state(pdev, PCI_D0);
1735 pci_restore_state(pdev);
1736
1737 return netxen_nic_attach_late_func(pdev);
1738}
1739
1740static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1741 pci_channel_state_t state)
1742{
1743 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1744
1745 if (state == pci_channel_io_perm_failure)
1746 return PCI_ERS_RESULT_DISCONNECT;
1747
1748 if (nx_dev_request_aer(adapter))
1749 return PCI_ERS_RESULT_RECOVERED;
1750
1751 netxen_nic_detach_func(adapter);
1752
1753 pci_disable_device(pdev);
1754
1755 return PCI_ERS_RESULT_NEED_RESET;
1756}
1757
1758static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1759{
1760 int err = 0;
1761
1762 err = netxen_nic_attach_func(pdev);
1763
1764 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1765}
1766
1767static void netxen_nic_shutdown(struct pci_dev *pdev)
1768{
1769 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1770
1771 netxen_nic_detach_func(adapter);
1772
1773 if (pci_save_state(pdev))
1774 return;
1775
1776 if (netxen_nic_wol_supported(adapter)) {
1777 pci_enable_wake(pdev, PCI_D3cold, 1);
1778 pci_enable_wake(pdev, PCI_D3hot, 1);
1779 }
1780
1781 pci_disable_device(pdev);
1782}
1783
1784static int __maybe_unused
1785netxen_nic_suspend(struct device *dev_d)
1786{
1787 struct netxen_adapter *adapter = dev_get_drvdata(dev_d);
1788
1789 netxen_nic_detach_func(adapter);
1790
1791 if (netxen_nic_wol_supported(adapter))
1792 device_wakeup_enable(dev_d);
1793
1794 return 0;
1795}
1796
1797static int __maybe_unused
1798netxen_nic_resume(struct device *dev_d)
1799{
1800 return netxen_nic_attach_late_func(to_pci_dev(dev_d));
1801}
1802
1803static int netxen_nic_open(struct net_device *netdev)
1804{
1805 struct netxen_adapter *adapter = netdev_priv(netdev);
1806 int err = 0;
1807
1808 if (adapter->driver_mismatch)
1809 return -EIO;
1810
1811 err = netxen_nic_attach(adapter);
1812 if (err)
1813 return err;
1814
1815 err = __netxen_nic_up(adapter, netdev);
1816 if (err)
1817 goto err_out;
1818
1819 netif_start_queue(netdev);
1820
1821 return 0;
1822
1823err_out:
1824 netxen_nic_detach(adapter);
1825 return err;
1826}
1827
1828/*
1829 * netxen_nic_close - Disables a network interface entry point
1830 */
1831static int netxen_nic_close(struct net_device *netdev)
1832{
1833 struct netxen_adapter *adapter = netdev_priv(netdev);
1834
1835 __netxen_nic_down(adapter, netdev);
1836 return 0;
1837}
1838
1839static void
1840netxen_tso_check(struct net_device *netdev,
1841 struct nx_host_tx_ring *tx_ring,
1842 struct cmd_desc_type0 *first_desc,
1843 struct sk_buff *skb)
1844{
1845 u8 opcode = TX_ETHER_PKT;
1846 __be16 protocol = skb->protocol;
1847 u16 flags = 0, vid = 0;
1848 u32 producer;
1849 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1850 struct cmd_desc_type0 *hwdesc;
1851 struct vlan_ethhdr *vh;
1852
1853 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1854
1855 vh = skb_vlan_eth_hdr(skb);
1856 protocol = vh->h_vlan_encapsulated_proto;
1857 flags = FLAGS_VLAN_TAGGED;
1858
1859 } else if (skb_vlan_tag_present(skb)) {
1860 flags = FLAGS_VLAN_OOB;
1861 vid = skb_vlan_tag_get(skb);
1862 netxen_set_tx_vlan_tci(first_desc, vid);
1863 vlan_oob = 1;
1864 }
1865
1866 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1867 skb_shinfo(skb)->gso_size > 0) {
1868
1869 hdr_len = skb_tcp_all_headers(skb);
1870
1871 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1872 first_desc->total_hdr_length = hdr_len;
1873 if (vlan_oob) {
1874 first_desc->total_hdr_length += VLAN_HLEN;
1875 first_desc->tcp_hdr_offset = VLAN_HLEN;
1876 first_desc->ip_hdr_offset = VLAN_HLEN;
1877 /* Only in case of TSO on vlan device */
1878 flags |= FLAGS_VLAN_TAGGED;
1879 }
1880
1881 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1882 TX_TCP_LSO6 : TX_TCP_LSO;
1883 tso = 1;
1884
1885 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1886 u8 l4proto;
1887
1888 if (protocol == cpu_to_be16(ETH_P_IP)) {
1889 l4proto = ip_hdr(skb)->protocol;
1890
1891 if (l4proto == IPPROTO_TCP)
1892 opcode = TX_TCP_PKT;
1893 else if(l4proto == IPPROTO_UDP)
1894 opcode = TX_UDP_PKT;
1895 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1896 l4proto = ipv6_hdr(skb)->nexthdr;
1897
1898 if (l4proto == IPPROTO_TCP)
1899 opcode = TX_TCPV6_PKT;
1900 else if(l4proto == IPPROTO_UDP)
1901 opcode = TX_UDPV6_PKT;
1902 }
1903 }
1904
1905 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1906 first_desc->ip_hdr_offset += skb_network_offset(skb);
1907 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1908
1909 if (!tso)
1910 return;
1911
1912 /* For LSO, we need to copy the MAC/IP/TCP headers into
1913 * the descriptor ring
1914 */
1915 producer = tx_ring->producer;
1916 copied = 0;
1917 offset = 2;
1918
1919 if (vlan_oob) {
1920 /* Create a TSO vlan header template for firmware */
1921
1922 hwdesc = &tx_ring->desc_head[producer];
1923 tx_ring->cmd_buf_arr[producer].skb = NULL;
1924
1925 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1926 hdr_len + VLAN_HLEN);
1927
1928 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1929 skb_copy_from_linear_data(skb, vh, 12);
1930 vh->h_vlan_proto = htons(ETH_P_8021Q);
1931 vh->h_vlan_TCI = htons(vid);
1932 skb_copy_from_linear_data_offset(skb, 12,
1933 (char *)vh + 16, copy_len - 16);
1934
1935 copied = copy_len - VLAN_HLEN;
1936 offset = 0;
1937
1938 producer = get_next_index(producer, tx_ring->num_desc);
1939 }
1940
1941 while (copied < hdr_len) {
1942
1943 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1944 (hdr_len - copied));
1945
1946 hwdesc = &tx_ring->desc_head[producer];
1947 tx_ring->cmd_buf_arr[producer].skb = NULL;
1948
1949 skb_copy_from_linear_data_offset(skb, copied,
1950 (char *)hwdesc + offset, copy_len);
1951
1952 copied += copy_len;
1953 offset = 0;
1954
1955 producer = get_next_index(producer, tx_ring->num_desc);
1956 }
1957
1958 tx_ring->producer = producer;
1959 barrier();
1960}
1961
1962static int
1963netxen_map_tx_skb(struct pci_dev *pdev,
1964 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1965{
1966 struct netxen_skb_frag *nf;
1967 skb_frag_t *frag;
1968 int i, nr_frags;
1969 dma_addr_t map;
1970
1971 nr_frags = skb_shinfo(skb)->nr_frags;
1972 nf = &pbuf->frag_array[0];
1973
1974 map = dma_map_single(&pdev->dev, skb->data, skb_headlen(skb),
1975 DMA_TO_DEVICE);
1976 if (dma_mapping_error(&pdev->dev, map))
1977 goto out_err;
1978
1979 nf->dma = map;
1980 nf->length = skb_headlen(skb);
1981
1982 for (i = 0; i < nr_frags; i++) {
1983 frag = &skb_shinfo(skb)->frags[i];
1984 nf = &pbuf->frag_array[i+1];
1985
1986 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1987 DMA_TO_DEVICE);
1988 if (dma_mapping_error(&pdev->dev, map))
1989 goto unwind;
1990
1991 nf->dma = map;
1992 nf->length = skb_frag_size(frag);
1993 }
1994
1995 return 0;
1996
1997unwind:
1998 while (--i >= 0) {
1999 nf = &pbuf->frag_array[i+1];
2000 dma_unmap_page(&pdev->dev, nf->dma, nf->length, DMA_TO_DEVICE);
2001 nf->dma = 0ULL;
2002 }
2003
2004 nf = &pbuf->frag_array[0];
2005 dma_unmap_single(&pdev->dev, nf->dma, skb_headlen(skb), DMA_TO_DEVICE);
2006 nf->dma = 0ULL;
2007
2008out_err:
2009 return -ENOMEM;
2010}
2011
2012static inline void
2013netxen_clear_cmddesc(u64 *desc)
2014{
2015 desc[0] = 0ULL;
2016 desc[2] = 0ULL;
2017}
2018
2019static netdev_tx_t
2020netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2021{
2022 struct netxen_adapter *adapter = netdev_priv(netdev);
2023 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2024 struct netxen_cmd_buffer *pbuf;
2025 struct netxen_skb_frag *buffrag;
2026 struct cmd_desc_type0 *hwdesc, *first_desc;
2027 struct pci_dev *pdev;
2028 int i, k;
2029 int delta = 0;
2030 skb_frag_t *frag;
2031
2032 u32 producer;
2033 int frag_count;
2034 u32 num_txd = tx_ring->num_desc;
2035
2036 frag_count = skb_shinfo(skb)->nr_frags + 1;
2037
2038 /* 14 frags supported for normal packet and
2039 * 32 frags supported for TSO packet
2040 */
2041 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2042
2043 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2044 frag = &skb_shinfo(skb)->frags[i];
2045 delta += skb_frag_size(frag);
2046 }
2047
2048 if (!__pskb_pull_tail(skb, delta))
2049 goto drop_packet;
2050
2051 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2052 }
2053
2054 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2055 netif_stop_queue(netdev);
2056 smp_mb();
2057 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2058 netif_start_queue(netdev);
2059 else
2060 return NETDEV_TX_BUSY;
2061 }
2062
2063 producer = tx_ring->producer;
2064 pbuf = &tx_ring->cmd_buf_arr[producer];
2065
2066 pdev = adapter->pdev;
2067
2068 if (netxen_map_tx_skb(pdev, skb, pbuf))
2069 goto drop_packet;
2070
2071 pbuf->skb = skb;
2072 pbuf->frag_count = frag_count;
2073
2074 first_desc = hwdesc = &tx_ring->desc_head[producer];
2075 netxen_clear_cmddesc((u64 *)hwdesc);
2076
2077 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2078 netxen_set_tx_port(first_desc, adapter->portnum);
2079
2080 for (i = 0; i < frag_count; i++) {
2081
2082 k = i % 4;
2083
2084 if ((k == 0) && (i > 0)) {
2085 /* move to next desc.*/
2086 producer = get_next_index(producer, num_txd);
2087 hwdesc = &tx_ring->desc_head[producer];
2088 netxen_clear_cmddesc((u64 *)hwdesc);
2089 tx_ring->cmd_buf_arr[producer].skb = NULL;
2090 }
2091
2092 buffrag = &pbuf->frag_array[i];
2093
2094 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2095 switch (k) {
2096 case 0:
2097 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2098 break;
2099 case 1:
2100 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2101 break;
2102 case 2:
2103 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2104 break;
2105 case 3:
2106 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2107 break;
2108 }
2109 }
2110
2111 tx_ring->producer = get_next_index(producer, num_txd);
2112
2113 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2114
2115 adapter->stats.txbytes += skb->len;
2116 adapter->stats.xmitcalled++;
2117
2118 netxen_nic_update_cmd_producer(adapter, tx_ring);
2119
2120 return NETDEV_TX_OK;
2121
2122drop_packet:
2123 adapter->stats.txdropped++;
2124 dev_kfree_skb_any(skb);
2125 return NETDEV_TX_OK;
2126}
2127
2128static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2129{
2130 struct net_device *netdev = adapter->netdev;
2131 uint32_t temp, temp_state, temp_val;
2132 int rv = 0;
2133
2134 temp = NXRD32(adapter, CRB_TEMP_STATE);
2135
2136 temp_state = nx_get_temp_state(temp);
2137 temp_val = nx_get_temp_val(temp);
2138
2139 if (temp_state == NX_TEMP_PANIC) {
2140 printk(KERN_ALERT
2141 "%s: Device temperature %d degrees C exceeds"
2142 " maximum allowed. Hardware has been shut down.\n",
2143 netdev->name, temp_val);
2144 rv = 1;
2145 } else if (temp_state == NX_TEMP_WARN) {
2146 if (adapter->temp == NX_TEMP_NORMAL) {
2147 printk(KERN_ALERT
2148 "%s: Device temperature %d degrees C "
2149 "exceeds operating range."
2150 " Immediate action needed.\n",
2151 netdev->name, temp_val);
2152 }
2153 } else {
2154 if (adapter->temp == NX_TEMP_WARN) {
2155 printk(KERN_INFO
2156 "%s: Device temperature is now %d degrees C"
2157 " in normal range.\n", netdev->name,
2158 temp_val);
2159 }
2160 }
2161 adapter->temp = temp_state;
2162 return rv;
2163}
2164
2165void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2166{
2167 struct net_device *netdev = adapter->netdev;
2168
2169 if (adapter->ahw.linkup && !linkup) {
2170 printk(KERN_INFO "%s: %s NIC Link is down\n",
2171 netxen_nic_driver_name, netdev->name);
2172 adapter->ahw.linkup = 0;
2173 if (netif_running(netdev)) {
2174 netif_carrier_off(netdev);
2175 netif_stop_queue(netdev);
2176 }
2177 adapter->link_changed = !adapter->has_link_events;
2178 } else if (!adapter->ahw.linkup && linkup) {
2179 printk(KERN_INFO "%s: %s NIC Link is up\n",
2180 netxen_nic_driver_name, netdev->name);
2181 adapter->ahw.linkup = 1;
2182 if (netif_running(netdev)) {
2183 netif_carrier_on(netdev);
2184 netif_wake_queue(netdev);
2185 }
2186 adapter->link_changed = !adapter->has_link_events;
2187 }
2188}
2189
2190static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2191{
2192 u32 val, port, linkup;
2193
2194 port = adapter->physical_port;
2195
2196 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2197 val = NXRD32(adapter, CRB_XG_STATE_P3);
2198 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2199 linkup = (val == XG_LINK_UP_P3);
2200 } else {
2201 val = NXRD32(adapter, CRB_XG_STATE);
2202 val = (val >> port*8) & 0xff;
2203 linkup = (val == XG_LINK_UP);
2204 }
2205
2206 netxen_advert_link_change(adapter, linkup);
2207}
2208
2209static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue)
2210{
2211 struct netxen_adapter *adapter = netdev_priv(netdev);
2212
2213 if (test_bit(__NX_RESETTING, &adapter->state))
2214 return;
2215
2216 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2217 schedule_work(&adapter->tx_timeout_task);
2218}
2219
2220static void netxen_tx_timeout_task(struct work_struct *work)
2221{
2222 struct netxen_adapter *adapter =
2223 container_of(work, struct netxen_adapter, tx_timeout_task);
2224
2225 if (!netif_running(adapter->netdev))
2226 return;
2227
2228 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2229 return;
2230
2231 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2232 goto request_reset;
2233
2234 rtnl_lock();
2235 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2236 /* try to scrub interrupt */
2237 netxen_napi_disable(adapter);
2238
2239 netxen_napi_enable(adapter);
2240
2241 netif_wake_queue(adapter->netdev);
2242
2243 clear_bit(__NX_RESETTING, &adapter->state);
2244 } else {
2245 clear_bit(__NX_RESETTING, &adapter->state);
2246 if (netxen_nic_reset_context(adapter)) {
2247 rtnl_unlock();
2248 goto request_reset;
2249 }
2250 }
2251 netif_trans_update(adapter->netdev);
2252 rtnl_unlock();
2253 return;
2254
2255request_reset:
2256 adapter->need_fw_reset = 1;
2257 clear_bit(__NX_RESETTING, &adapter->state);
2258}
2259
2260static void netxen_nic_get_stats(struct net_device *netdev,
2261 struct rtnl_link_stats64 *stats)
2262{
2263 struct netxen_adapter *adapter = netdev_priv(netdev);
2264
2265 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2266 stats->tx_packets = adapter->stats.xmitfinished;
2267 stats->rx_bytes = adapter->stats.rxbytes;
2268 stats->tx_bytes = adapter->stats.txbytes;
2269 stats->rx_dropped = adapter->stats.rxdropped;
2270 stats->tx_dropped = adapter->stats.txdropped;
2271}
2272
2273static irqreturn_t netxen_intr(int irq, void *data)
2274{
2275 struct nx_host_sds_ring *sds_ring = data;
2276 struct netxen_adapter *adapter = sds_ring->adapter;
2277 u32 status = 0;
2278
2279 status = readl(adapter->isr_int_vec);
2280
2281 if (!(status & adapter->int_vec_bit))
2282 return IRQ_NONE;
2283
2284 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2285 /* check interrupt state machine, to be sure */
2286 status = readl(adapter->crb_int_state_reg);
2287 if (!ISR_LEGACY_INT_TRIGGERED(status))
2288 return IRQ_NONE;
2289
2290 } else {
2291 unsigned long our_int = 0;
2292
2293 our_int = readl(adapter->crb_int_state_reg);
2294
2295 /* not our interrupt */
2296 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2297 return IRQ_NONE;
2298
2299 /* claim interrupt */
2300 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2301
2302 /* clear interrupt */
2303 netxen_nic_disable_int(sds_ring);
2304 }
2305
2306 writel(0xffffffff, adapter->tgt_status_reg);
2307 /* read twice to ensure write is flushed */
2308 readl(adapter->isr_int_vec);
2309 readl(adapter->isr_int_vec);
2310
2311 napi_schedule(&sds_ring->napi);
2312
2313 return IRQ_HANDLED;
2314}
2315
2316static irqreturn_t netxen_msi_intr(int irq, void *data)
2317{
2318 struct nx_host_sds_ring *sds_ring = data;
2319 struct netxen_adapter *adapter = sds_ring->adapter;
2320
2321 /* clear interrupt */
2322 writel(0xffffffff, adapter->tgt_status_reg);
2323
2324 napi_schedule(&sds_ring->napi);
2325 return IRQ_HANDLED;
2326}
2327
2328static irqreturn_t netxen_msix_intr(int irq, void *data)
2329{
2330 struct nx_host_sds_ring *sds_ring = data;
2331
2332 napi_schedule(&sds_ring->napi);
2333 return IRQ_HANDLED;
2334}
2335
2336static int netxen_nic_poll(struct napi_struct *napi, int budget)
2337{
2338 struct nx_host_sds_ring *sds_ring =
2339 container_of(napi, struct nx_host_sds_ring, napi);
2340
2341 struct netxen_adapter *adapter = sds_ring->adapter;
2342
2343 int tx_complete;
2344 int work_done;
2345
2346 tx_complete = netxen_process_cmd_ring(adapter);
2347
2348 work_done = netxen_process_rcv_ring(sds_ring, budget);
2349
2350 if (!tx_complete)
2351 work_done = budget;
2352
2353 if (work_done < budget) {
2354 napi_complete_done(&sds_ring->napi, work_done);
2355 if (test_bit(__NX_DEV_UP, &adapter->state))
2356 netxen_nic_enable_int(sds_ring);
2357 }
2358
2359 return work_done;
2360}
2361
2362static int
2363nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2364{
2365 int count;
2366 if (netxen_api_lock(adapter))
2367 return -EIO;
2368
2369 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2370
2371 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2372
2373 netxen_api_unlock(adapter);
2374 return count;
2375}
2376
2377static int
2378nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2379{
2380 int count, state;
2381 if (netxen_api_lock(adapter))
2382 return -EIO;
2383
2384 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2385 WARN_ON(count == 0);
2386
2387 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2388 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2389
2390 if (count == 0 && state != NX_DEV_FAILED)
2391 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2392
2393 netxen_api_unlock(adapter);
2394 return count;
2395}
2396
2397static int
2398nx_dev_request_aer(struct netxen_adapter *adapter)
2399{
2400 u32 state;
2401 int ret = -EINVAL;
2402
2403 if (netxen_api_lock(adapter))
2404 return ret;
2405
2406 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2407
2408 if (state == NX_DEV_NEED_AER)
2409 ret = 0;
2410 else if (state == NX_DEV_READY) {
2411 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2412 ret = 0;
2413 }
2414
2415 netxen_api_unlock(adapter);
2416 return ret;
2417}
2418
2419int
2420nx_dev_request_reset(struct netxen_adapter *adapter)
2421{
2422 u32 state;
2423 int ret = -EINVAL;
2424
2425 if (netxen_api_lock(adapter))
2426 return ret;
2427
2428 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2429
2430 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2431 ret = 0;
2432 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2433 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2434 adapter->flags |= NETXEN_FW_RESET_OWNER;
2435 ret = 0;
2436 }
2437
2438 netxen_api_unlock(adapter);
2439
2440 return ret;
2441}
2442
2443static int
2444netxen_can_start_firmware(struct netxen_adapter *adapter)
2445{
2446 int count;
2447 int can_start = 0;
2448
2449 if (netxen_api_lock(adapter)) {
2450 nx_incr_dev_ref_cnt(adapter);
2451 return -1;
2452 }
2453
2454 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2455
2456 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2457 count = 0;
2458
2459 if (count == 0) {
2460 can_start = 1;
2461 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2462 }
2463
2464 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2465
2466 netxen_api_unlock(adapter);
2467
2468 return can_start;
2469}
2470
2471static void
2472netxen_schedule_work(struct netxen_adapter *adapter,
2473 work_func_t func, int delay)
2474{
2475 INIT_DELAYED_WORK(&adapter->fw_work, func);
2476 schedule_delayed_work(&adapter->fw_work, delay);
2477}
2478
2479static void
2480netxen_cancel_fw_work(struct netxen_adapter *adapter)
2481{
2482 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2483 msleep(10);
2484
2485 cancel_delayed_work_sync(&adapter->fw_work);
2486}
2487
2488static void
2489netxen_attach_work(struct work_struct *work)
2490{
2491 struct netxen_adapter *adapter = container_of(work,
2492 struct netxen_adapter, fw_work.work);
2493 struct net_device *netdev = adapter->netdev;
2494 int err = 0;
2495
2496 if (netif_running(netdev)) {
2497 err = netxen_nic_attach(adapter);
2498 if (err)
2499 goto done;
2500
2501 err = netxen_nic_up(adapter, netdev);
2502 if (err) {
2503 netxen_nic_detach(adapter);
2504 goto done;
2505 }
2506
2507 netxen_restore_indev_addr(netdev, NETDEV_UP);
2508 }
2509
2510 netif_device_attach(netdev);
2511
2512done:
2513 adapter->fw_fail_cnt = 0;
2514 clear_bit(__NX_RESETTING, &adapter->state);
2515 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2516}
2517
2518static void
2519netxen_fwinit_work(struct work_struct *work)
2520{
2521 struct netxen_adapter *adapter = container_of(work,
2522 struct netxen_adapter, fw_work.work);
2523 int dev_state;
2524 int count;
2525 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2526 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2527 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2528 WARN_ON(count == 0);
2529 if (count == 1) {
2530 if (adapter->mdump.md_enabled) {
2531 rtnl_lock();
2532 netxen_dump_fw(adapter);
2533 rtnl_unlock();
2534 }
2535 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2536 if (netxen_api_lock(adapter)) {
2537 clear_bit(__NX_RESETTING, &adapter->state);
2538 NXWR32(adapter, NX_CRB_DEV_STATE,
2539 NX_DEV_FAILED);
2540 return;
2541 }
2542 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2543 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2544 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2545 dev_state = NX_DEV_COLD;
2546 netxen_api_unlock(adapter);
2547 }
2548 }
2549
2550 switch (dev_state) {
2551 case NX_DEV_COLD:
2552 case NX_DEV_READY:
2553 if (!netxen_start_firmware(adapter)) {
2554 netxen_schedule_work(adapter, netxen_attach_work, 0);
2555 return;
2556 }
2557 break;
2558
2559 case NX_DEV_NEED_RESET:
2560 case NX_DEV_INITALIZING:
2561 netxen_schedule_work(adapter,
2562 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2563 return;
2564
2565 case NX_DEV_FAILED:
2566 default:
2567 nx_incr_dev_ref_cnt(adapter);
2568 break;
2569 }
2570
2571 if (netxen_api_lock(adapter)) {
2572 clear_bit(__NX_RESETTING, &adapter->state);
2573 return;
2574 }
2575 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2576 netxen_api_unlock(adapter);
2577 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2578 adapter->netdev->name);
2579
2580 clear_bit(__NX_RESETTING, &adapter->state);
2581}
2582
2583static void
2584netxen_detach_work(struct work_struct *work)
2585{
2586 struct netxen_adapter *adapter = container_of(work,
2587 struct netxen_adapter, fw_work.work);
2588 struct net_device *netdev = adapter->netdev;
2589 int ref_cnt = 0, delay;
2590 u32 status;
2591
2592 netif_device_detach(netdev);
2593
2594 netxen_nic_down(adapter, netdev);
2595
2596 rtnl_lock();
2597 netxen_nic_detach(adapter);
2598 rtnl_unlock();
2599
2600 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2601
2602 if (status & NX_RCODE_FATAL_ERROR)
2603 goto err_ret;
2604
2605 if (adapter->temp == NX_TEMP_PANIC)
2606 goto err_ret;
2607
2608 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2609 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2610
2611 if (ref_cnt == -EIO)
2612 goto err_ret;
2613
2614 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2615
2616 adapter->fw_wait_cnt = 0;
2617 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2618
2619 return;
2620
2621err_ret:
2622 clear_bit(__NX_RESETTING, &adapter->state);
2623}
2624
2625static int
2626netxen_check_health(struct netxen_adapter *adapter)
2627{
2628 u32 state, heartbit;
2629 u32 peg_status;
2630 struct net_device *netdev = adapter->netdev;
2631
2632 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2633 if (state == NX_DEV_NEED_AER)
2634 return 0;
2635
2636 if (netxen_nic_check_temp(adapter))
2637 goto detach;
2638
2639 if (adapter->need_fw_reset) {
2640 if (nx_dev_request_reset(adapter))
2641 return 0;
2642 goto detach;
2643 }
2644
2645 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2646 * 1. Tx timeout 2. Fw hang
2647 * Send request to destroy context in case of tx timeout only
2648 * and doesn't required in case of Fw hang
2649 */
2650 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2651 adapter->need_fw_reset = 1;
2652 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2653 goto detach;
2654 }
2655
2656 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2657 return 0;
2658
2659 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2660 if (heartbit != adapter->heartbit) {
2661 adapter->heartbit = heartbit;
2662 adapter->fw_fail_cnt = 0;
2663 if (adapter->need_fw_reset)
2664 goto detach;
2665 return 0;
2666 }
2667
2668 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2669 return 0;
2670
2671 if (nx_dev_request_reset(adapter))
2672 return 0;
2673
2674 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2675
2676 dev_err(&netdev->dev, "firmware hang detected\n");
2677 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2678 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2679 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2680 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2681 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2682 "PEG_NET_4_PC: 0x%x\n",
2683 peg_status,
2684 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2685 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2686 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2687 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2688 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2689 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2690 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2691 dev_err(&adapter->pdev->dev,
2692 "Firmware aborted with error code 0x00006700. "
2693 "Device is being reset.\n");
2694detach:
2695 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2696 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2697 netxen_schedule_work(adapter, netxen_detach_work, 0);
2698 return 1;
2699}
2700
2701static void
2702netxen_fw_poll_work(struct work_struct *work)
2703{
2704 struct netxen_adapter *adapter = container_of(work,
2705 struct netxen_adapter, fw_work.work);
2706
2707 if (test_bit(__NX_RESETTING, &adapter->state))
2708 goto reschedule;
2709
2710 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2711 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
2712 if (!adapter->has_link_events) {
2713
2714 netxen_nic_handle_phy_intr(adapter);
2715
2716 if (adapter->link_changed)
2717 netxen_nic_set_link_parameters(adapter);
2718 }
2719 }
2720
2721 if (netxen_check_health(adapter))
2722 return;
2723
2724reschedule:
2725 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2726}
2727
2728static ssize_t
2729netxen_store_bridged_mode(struct device *dev,
2730 struct device_attribute *attr, const char *buf, size_t len)
2731{
2732 struct net_device *net = to_net_dev(dev);
2733 struct netxen_adapter *adapter = netdev_priv(net);
2734 unsigned long new;
2735 int ret = -EINVAL;
2736
2737 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2738 goto err_out;
2739
2740 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2741 goto err_out;
2742
2743 if (kstrtoul(buf, 2, &new))
2744 goto err_out;
2745
2746 if (!netxen_config_bridged_mode(adapter, !!new))
2747 ret = len;
2748
2749err_out:
2750 return ret;
2751}
2752
2753static ssize_t
2754netxen_show_bridged_mode(struct device *dev,
2755 struct device_attribute *attr, char *buf)
2756{
2757 struct net_device *net = to_net_dev(dev);
2758 struct netxen_adapter *adapter;
2759 int bridged_mode = 0;
2760
2761 adapter = netdev_priv(net);
2762
2763 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2764 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2765
2766 return sprintf(buf, "%d\n", bridged_mode);
2767}
2768
2769static const struct device_attribute dev_attr_bridged_mode = {
2770 .attr = { .name = "bridged_mode", .mode = 0644 },
2771 .show = netxen_show_bridged_mode,
2772 .store = netxen_store_bridged_mode,
2773};
2774
2775static ssize_t
2776netxen_store_diag_mode(struct device *dev,
2777 struct device_attribute *attr, const char *buf, size_t len)
2778{
2779 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2780 unsigned long new;
2781
2782 if (kstrtoul(buf, 2, &new))
2783 return -EINVAL;
2784
2785 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2786 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2787
2788 return len;
2789}
2790
2791static ssize_t
2792netxen_show_diag_mode(struct device *dev,
2793 struct device_attribute *attr, char *buf)
2794{
2795 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2796
2797 return sprintf(buf, "%d\n",
2798 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2799}
2800
2801static const struct device_attribute dev_attr_diag_mode = {
2802 .attr = { .name = "diag_mode", .mode = 0644 },
2803 .show = netxen_show_diag_mode,
2804 .store = netxen_store_diag_mode,
2805};
2806
2807static int
2808netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2809 loff_t offset, size_t size)
2810{
2811 size_t crb_size = 4;
2812
2813 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2814 return -EIO;
2815
2816 if (offset < NETXEN_PCI_CRBSPACE) {
2817 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2818 return -EINVAL;
2819
2820 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2821 NETXEN_PCI_CAMQM_2M_END))
2822 crb_size = 8;
2823 else
2824 return -EINVAL;
2825 }
2826
2827 if ((size != crb_size) || (offset & (crb_size-1)))
2828 return -EINVAL;
2829
2830 return 0;
2831}
2832
2833static ssize_t
2834netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2835 struct bin_attribute *attr,
2836 char *buf, loff_t offset, size_t size)
2837{
2838 struct device *dev = kobj_to_dev(kobj);
2839 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2840 u32 data;
2841 u64 qmdata;
2842 int ret;
2843
2844 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2845 if (ret != 0)
2846 return ret;
2847
2848 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2849 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2850 NETXEN_PCI_CAMQM_2M_END)) {
2851 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2852 memcpy(buf, &qmdata, size);
2853 } else {
2854 data = NXRD32(adapter, offset);
2855 memcpy(buf, &data, size);
2856 }
2857
2858 return size;
2859}
2860
2861static ssize_t
2862netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2863 struct bin_attribute *attr,
2864 char *buf, loff_t offset, size_t size)
2865{
2866 struct device *dev = kobj_to_dev(kobj);
2867 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2868 u32 data;
2869 u64 qmdata;
2870 int ret;
2871
2872 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2873 if (ret != 0)
2874 return ret;
2875
2876 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2877 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2878 NETXEN_PCI_CAMQM_2M_END)) {
2879 memcpy(&qmdata, buf, size);
2880 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2881 } else {
2882 memcpy(&data, buf, size);
2883 NXWR32(adapter, offset, data);
2884 }
2885
2886 return size;
2887}
2888
2889static int
2890netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2891 loff_t offset, size_t size)
2892{
2893 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2894 return -EIO;
2895
2896 if ((size != 8) || (offset & 0x7))
2897 return -EIO;
2898
2899 return 0;
2900}
2901
2902static ssize_t
2903netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2904 struct bin_attribute *attr,
2905 char *buf, loff_t offset, size_t size)
2906{
2907 struct device *dev = kobj_to_dev(kobj);
2908 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2909 u64 data;
2910 int ret;
2911
2912 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2913 if (ret != 0)
2914 return ret;
2915
2916 if (adapter->pci_mem_read(adapter, offset, &data))
2917 return -EIO;
2918
2919 memcpy(buf, &data, size);
2920
2921 return size;
2922}
2923
2924static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2925 struct bin_attribute *attr, char *buf,
2926 loff_t offset, size_t size)
2927{
2928 struct device *dev = kobj_to_dev(kobj);
2929 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2930 u64 data;
2931 int ret;
2932
2933 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2934 if (ret != 0)
2935 return ret;
2936
2937 memcpy(&data, buf, size);
2938
2939 if (adapter->pci_mem_write(adapter, offset, data))
2940 return -EIO;
2941
2942 return size;
2943}
2944
2945
2946static const struct bin_attribute bin_attr_crb = {
2947 .attr = { .name = "crb", .mode = 0644 },
2948 .size = 0,
2949 .read = netxen_sysfs_read_crb,
2950 .write = netxen_sysfs_write_crb,
2951};
2952
2953static const struct bin_attribute bin_attr_mem = {
2954 .attr = { .name = "mem", .mode = 0644 },
2955 .size = 0,
2956 .read = netxen_sysfs_read_mem,
2957 .write = netxen_sysfs_write_mem,
2958};
2959
2960static ssize_t
2961netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2962 struct bin_attribute *attr,
2963 char *buf, loff_t offset, size_t size)
2964{
2965 struct device *dev = kobj_to_dev(kobj);
2966 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2967 struct net_device *netdev = adapter->netdev;
2968 struct netxen_dimm_cfg dimm;
2969 u8 dw, rows, cols, banks, ranks;
2970 u32 val;
2971
2972 if (size < attr->size) {
2973 netdev_err(netdev, "Invalid size\n");
2974 return -EINVAL;
2975 }
2976
2977 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
2978 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
2979
2980 /* Checks if DIMM info is valid. */
2981 if (val & NETXEN_DIMM_VALID_FLAG) {
2982 netdev_err(netdev, "Invalid DIMM flag\n");
2983 dimm.presence = 0xff;
2984 goto out;
2985 }
2986
2987 rows = NETXEN_DIMM_NUMROWS(val);
2988 cols = NETXEN_DIMM_NUMCOLS(val);
2989 ranks = NETXEN_DIMM_NUMRANKS(val);
2990 banks = NETXEN_DIMM_NUMBANKS(val);
2991 dw = NETXEN_DIMM_DATAWIDTH(val);
2992
2993 dimm.presence = (val & NETXEN_DIMM_PRESENT);
2994
2995 /* Checks if DIMM info is present. */
2996 if (!dimm.presence) {
2997 netdev_err(netdev, "DIMM not present\n");
2998 goto out;
2999 }
3000
3001 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3002
3003 switch (dimm.dimm_type) {
3004 case NETXEN_DIMM_TYPE_RDIMM:
3005 case NETXEN_DIMM_TYPE_UDIMM:
3006 case NETXEN_DIMM_TYPE_SO_DIMM:
3007 case NETXEN_DIMM_TYPE_Micro_DIMM:
3008 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3009 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3010 break;
3011 default:
3012 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3013 goto out;
3014 }
3015
3016 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3017 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3018 else
3019 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3020
3021 if (val & NETXEN_DIMM_SIZE) {
3022 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3023 goto out;
3024 }
3025
3026 if (!rows) {
3027 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3028 goto out;
3029 }
3030
3031 if (!cols) {
3032 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3033 goto out;
3034 }
3035
3036 if (!banks) {
3037 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3038 goto out;
3039 }
3040
3041 ranks += 1;
3042
3043 switch (dw) {
3044 case 0x0:
3045 dw = 32;
3046 break;
3047 case 0x1:
3048 dw = 33;
3049 break;
3050 case 0x2:
3051 dw = 36;
3052 break;
3053 case 0x3:
3054 dw = 64;
3055 break;
3056 case 0x4:
3057 dw = 72;
3058 break;
3059 case 0x5:
3060 dw = 80;
3061 break;
3062 case 0x6:
3063 dw = 128;
3064 break;
3065 case 0x7:
3066 dw = 144;
3067 break;
3068 default:
3069 netdev_err(netdev, "Invalid data-width %x\n", dw);
3070 goto out;
3071 }
3072
3073 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3074 /* Size returned in MB. */
3075 dimm.size = (dimm.size) / 0x100000;
3076out:
3077 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3078 return sizeof(struct netxen_dimm_cfg);
3079
3080}
3081
3082static const struct bin_attribute bin_attr_dimm = {
3083 .attr = { .name = "dimm", .mode = 0644 },
3084 .size = sizeof(struct netxen_dimm_cfg),
3085 .read = netxen_sysfs_read_dimm,
3086};
3087
3088
3089static void
3090netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3091{
3092 struct device *dev = &adapter->pdev->dev;
3093
3094 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3095 /* bridged_mode control */
3096 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3097 dev_warn(dev,
3098 "failed to create bridged_mode sysfs entry\n");
3099 }
3100 }
3101}
3102
3103static void
3104netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3105{
3106 struct device *dev = &adapter->pdev->dev;
3107
3108 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3109 device_remove_file(dev, &dev_attr_bridged_mode);
3110}
3111
3112static void
3113netxen_create_diag_entries(struct netxen_adapter *adapter)
3114{
3115 struct pci_dev *pdev = adapter->pdev;
3116 struct device *dev;
3117
3118 dev = &pdev->dev;
3119 if (device_create_file(dev, &dev_attr_diag_mode))
3120 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3121 if (device_create_bin_file(dev, &bin_attr_crb))
3122 dev_info(dev, "failed to create crb sysfs entry\n");
3123 if (device_create_bin_file(dev, &bin_attr_mem))
3124 dev_info(dev, "failed to create mem sysfs entry\n");
3125 if (device_create_bin_file(dev, &bin_attr_dimm))
3126 dev_info(dev, "failed to create dimm sysfs entry\n");
3127}
3128
3129
3130static void
3131netxen_remove_diag_entries(struct netxen_adapter *adapter)
3132{
3133 struct pci_dev *pdev = adapter->pdev;
3134 struct device *dev = &pdev->dev;
3135
3136 device_remove_file(dev, &dev_attr_diag_mode);
3137 device_remove_bin_file(dev, &bin_attr_crb);
3138 device_remove_bin_file(dev, &bin_attr_mem);
3139 device_remove_bin_file(dev, &bin_attr_dimm);
3140}
3141
3142#ifdef CONFIG_INET
3143
3144#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3145
3146static int
3147netxen_destip_supported(struct netxen_adapter *adapter)
3148{
3149 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3150 return 0;
3151
3152 if (adapter->ahw.cut_through)
3153 return 0;
3154
3155 return 1;
3156}
3157
3158static void
3159netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3160{
3161 struct nx_ip_list *cur, *tmp_cur;
3162
3163 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3164 if (master) {
3165 if (cur->master) {
3166 netxen_config_ipaddr(adapter, cur->ip_addr,
3167 NX_IP_DOWN);
3168 list_del(&cur->list);
3169 kfree(cur);
3170 }
3171 } else {
3172 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3173 list_del(&cur->list);
3174 kfree(cur);
3175 }
3176 }
3177}
3178
3179static bool
3180netxen_list_config_ip(struct netxen_adapter *adapter,
3181 struct in_ifaddr *ifa, unsigned long event)
3182{
3183 struct net_device *dev;
3184 struct nx_ip_list *cur, *tmp_cur;
3185 struct list_head *head;
3186 bool ret = false;
3187
3188 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3189
3190 if (dev == NULL)
3191 goto out;
3192
3193 switch (event) {
3194 case NX_IP_UP:
3195 list_for_each(head, &adapter->ip_list) {
3196 cur = list_entry(head, struct nx_ip_list, list);
3197
3198 if (cur->ip_addr == ifa->ifa_address)
3199 goto out;
3200 }
3201
3202 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3203 if (cur == NULL)
3204 goto out;
3205 if (is_vlan_dev(dev))
3206 dev = vlan_dev_real_dev(dev);
3207 cur->master = !!netif_is_bond_master(dev);
3208 cur->ip_addr = ifa->ifa_address;
3209 list_add_tail(&cur->list, &adapter->ip_list);
3210 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3211 ret = true;
3212 break;
3213 case NX_IP_DOWN:
3214 list_for_each_entry_safe(cur, tmp_cur,
3215 &adapter->ip_list, list) {
3216 if (cur->ip_addr == ifa->ifa_address) {
3217 list_del(&cur->list);
3218 kfree(cur);
3219 netxen_config_ipaddr(adapter, ifa->ifa_address,
3220 NX_IP_DOWN);
3221 ret = true;
3222 break;
3223 }
3224 }
3225 }
3226out:
3227 return ret;
3228}
3229
3230static void
3231netxen_config_indev_addr(struct netxen_adapter *adapter,
3232 struct net_device *dev, unsigned long event)
3233{
3234 struct in_device *indev;
3235 struct in_ifaddr *ifa;
3236
3237 if (!netxen_destip_supported(adapter))
3238 return;
3239
3240 indev = in_dev_get(dev);
3241 if (!indev)
3242 return;
3243
3244 rcu_read_lock();
3245 in_dev_for_each_ifa_rcu(ifa, indev) {
3246 switch (event) {
3247 case NETDEV_UP:
3248 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3249 break;
3250 case NETDEV_DOWN:
3251 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3252 break;
3253 default:
3254 break;
3255 }
3256 }
3257 rcu_read_unlock();
3258 in_dev_put(indev);
3259}
3260
3261static void
3262netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3263
3264{
3265 struct netxen_adapter *adapter = netdev_priv(netdev);
3266 struct nx_ip_list *pos, *tmp_pos;
3267 unsigned long ip_event;
3268
3269 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3270 netxen_config_indev_addr(adapter, netdev, event);
3271
3272 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3273 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3274 }
3275}
3276
3277static inline bool
3278netxen_config_checkdev(struct net_device *dev)
3279{
3280 struct netxen_adapter *adapter;
3281
3282 if (!is_netxen_netdev(dev))
3283 return false;
3284 adapter = netdev_priv(dev);
3285 if (!adapter)
3286 return false;
3287 if (!netxen_destip_supported(adapter))
3288 return false;
3289 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3290 return false;
3291
3292 return true;
3293}
3294
3295/**
3296 * netxen_config_master - configure addresses based on master
3297 * @dev: netxen device
3298 * @event: netdev event
3299 */
3300static void netxen_config_master(struct net_device *dev, unsigned long event)
3301{
3302 struct net_device *master, *slave;
3303 struct netxen_adapter *adapter = netdev_priv(dev);
3304
3305 rcu_read_lock();
3306 master = netdev_master_upper_dev_get_rcu(dev);
3307 /*
3308 * This is the case where the netxen nic is being
3309 * enslaved and is dev_open()ed in bond_enslave()
3310 * Now we should program the bond's (and its vlans')
3311 * addresses in the netxen NIC.
3312 */
3313 if (master && netif_is_bond_master(master) &&
3314 !netif_is_bond_slave(dev)) {
3315 netxen_config_indev_addr(adapter, master, event);
3316 for_each_netdev_rcu(&init_net, slave)
3317 if (is_vlan_dev(slave) &&
3318 vlan_dev_real_dev(slave) == master)
3319 netxen_config_indev_addr(adapter, slave, event);
3320 }
3321 rcu_read_unlock();
3322 /*
3323 * This is the case where the netxen nic is being
3324 * released and is dev_close()ed in bond_release()
3325 * just before IFF_BONDING is stripped.
3326 */
3327 if (!master && dev->priv_flags & IFF_BONDING)
3328 netxen_free_ip_list(adapter, true);
3329}
3330
3331static int netxen_netdev_event(struct notifier_block *this,
3332 unsigned long event, void *ptr)
3333{
3334 struct netxen_adapter *adapter;
3335 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3336 struct net_device *orig_dev = dev;
3337 struct net_device *slave;
3338
3339recheck:
3340 if (dev == NULL)
3341 goto done;
3342
3343 if (is_vlan_dev(dev)) {
3344 dev = vlan_dev_real_dev(dev);
3345 goto recheck;
3346 }
3347 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3348 /* If this is a bonding device, look for netxen-based slaves*/
3349 if (netif_is_bond_master(dev)) {
3350 rcu_read_lock();
3351 for_each_netdev_in_bond_rcu(dev, slave) {
3352 if (!netxen_config_checkdev(slave))
3353 continue;
3354 adapter = netdev_priv(slave);
3355 netxen_config_indev_addr(adapter,
3356 orig_dev, event);
3357 }
3358 rcu_read_unlock();
3359 } else {
3360 if (!netxen_config_checkdev(dev))
3361 goto done;
3362 adapter = netdev_priv(dev);
3363 /* Act only if the actual netxen is the target */
3364 if (orig_dev == dev)
3365 netxen_config_master(dev, event);
3366 netxen_config_indev_addr(adapter, orig_dev, event);
3367 }
3368 }
3369done:
3370 return NOTIFY_DONE;
3371}
3372
3373static int
3374netxen_inetaddr_event(struct notifier_block *this,
3375 unsigned long event, void *ptr)
3376{
3377 struct netxen_adapter *adapter;
3378 struct net_device *dev, *slave;
3379 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3380 unsigned long ip_event;
3381
3382 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3383 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3384recheck:
3385 if (dev == NULL)
3386 goto done;
3387
3388 if (is_vlan_dev(dev)) {
3389 dev = vlan_dev_real_dev(dev);
3390 goto recheck;
3391 }
3392 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3393 /* If this is a bonding device, look for netxen-based slaves*/
3394 if (netif_is_bond_master(dev)) {
3395 rcu_read_lock();
3396 for_each_netdev_in_bond_rcu(dev, slave) {
3397 if (!netxen_config_checkdev(slave))
3398 continue;
3399 adapter = netdev_priv(slave);
3400 netxen_list_config_ip(adapter, ifa, ip_event);
3401 }
3402 rcu_read_unlock();
3403 } else {
3404 if (!netxen_config_checkdev(dev))
3405 goto done;
3406 adapter = netdev_priv(dev);
3407 netxen_list_config_ip(adapter, ifa, ip_event);
3408 }
3409 }
3410done:
3411 return NOTIFY_DONE;
3412}
3413
3414static struct notifier_block netxen_netdev_cb = {
3415 .notifier_call = netxen_netdev_event,
3416};
3417
3418static struct notifier_block netxen_inetaddr_cb = {
3419 .notifier_call = netxen_inetaddr_event,
3420};
3421#else
3422static void
3423netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3424{ }
3425static void
3426netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3427{ }
3428#endif
3429
3430static const struct pci_error_handlers netxen_err_handler = {
3431 .error_detected = netxen_io_error_detected,
3432 .slot_reset = netxen_io_slot_reset,
3433};
3434
3435static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops,
3436 netxen_nic_suspend,
3437 netxen_nic_resume);
3438
3439static struct pci_driver netxen_driver = {
3440 .name = netxen_nic_driver_name,
3441 .id_table = netxen_pci_tbl,
3442 .probe = netxen_nic_probe,
3443 .remove = netxen_nic_remove,
3444 .driver.pm = &netxen_nic_pm_ops,
3445 .shutdown = netxen_nic_shutdown,
3446 .err_handler = &netxen_err_handler
3447};
3448
3449static int __init netxen_init_module(void)
3450{
3451 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3452
3453#ifdef CONFIG_INET
3454 register_netdevice_notifier(&netxen_netdev_cb);
3455 register_inetaddr_notifier(&netxen_inetaddr_cb);
3456#endif
3457 return pci_register_driver(&netxen_driver);
3458}
3459
3460module_init(netxen_init_module);
3461
3462static void __exit netxen_exit_module(void)
3463{
3464 pci_unregister_driver(&netxen_driver);
3465
3466#ifdef CONFIG_INET
3467 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3468 unregister_netdevice_notifier(&netxen_netdev_cb);
3469#endif
3470}
3471
3472module_exit(netxen_exit_module);
1/*
2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
4 * All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called "COPYING".
23 *
24 */
25
26#include <linux/slab.h>
27#include <linux/vmalloc.h>
28#include <linux/interrupt.h>
29#include "netxen_nic_hw.h"
30
31#include "netxen_nic.h"
32
33#include <linux/dma-mapping.h>
34#include <linux/if_vlan.h>
35#include <net/ip.h>
36#include <linux/ipv6.h>
37#include <linux/inetdevice.h>
38#include <linux/sysfs.h>
39#include <linux/aer.h>
40
41MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
42MODULE_LICENSE("GPL");
43MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
44MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
45
46char netxen_nic_driver_name[] = "netxen_nic";
47static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
48 NETXEN_NIC_LINUX_VERSIONID;
49
50static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
51
52/* Default to restricted 1G auto-neg mode */
53static int wol_port_mode = 5;
54
55static int use_msi = 1;
56
57static int use_msi_x = 1;
58
59static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60module_param(auto_fw_reset, int, 0644);
61MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
62
63static int __devinit netxen_nic_probe(struct pci_dev *pdev,
64 const struct pci_device_id *ent);
65static void __devexit netxen_nic_remove(struct pci_dev *pdev);
66static int netxen_nic_open(struct net_device *netdev);
67static int netxen_nic_close(struct net_device *netdev);
68static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
69 struct net_device *);
70static void netxen_tx_timeout(struct net_device *netdev);
71static void netxen_tx_timeout_task(struct work_struct *work);
72static void netxen_fw_poll_work(struct work_struct *work);
73static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
76static int netxen_nic_poll(struct napi_struct *napi, int budget);
77#ifdef CONFIG_NET_POLL_CONTROLLER
78static void netxen_nic_poll_controller(struct net_device *netdev);
79#endif
80
81static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
83static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
85static int nx_dev_request_aer(struct netxen_adapter *adapter);
86static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
87static int netxen_can_start_firmware(struct netxen_adapter *adapter);
88
89static irqreturn_t netxen_intr(int irq, void *data);
90static irqreturn_t netxen_msi_intr(int irq, void *data);
91static irqreturn_t netxen_msix_intr(int irq, void *data);
92
93static void netxen_free_vlan_ip_list(struct netxen_adapter *);
94static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
95static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
96 struct rtnl_link_stats64 *stats);
97static int netxen_nic_set_mac(struct net_device *netdev, void *p);
98
99/* PCI Device ID Table */
100#define ENTRY(device) \
101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103
104static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
112 ENTRY(PCI_DEVICE_ID_NX3031),
113 {0,}
114};
115
116MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117
118static uint32_t crb_cmd_producer[4] = {
119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
121};
122
123void
124netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
125 struct nx_host_tx_ring *tx_ring)
126{
127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
128}
129
130static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
133};
134
135static inline void
136netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
137 struct nx_host_tx_ring *tx_ring)
138{
139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
140}
141
142static uint32_t msi_tgt_status[8] = {
143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
147};
148
149static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
150
151static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
152{
153 struct netxen_adapter *adapter = sds_ring->adapter;
154
155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
156}
157
158static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
159{
160 struct netxen_adapter *adapter = sds_ring->adapter;
161
162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
163
164 if (!NETXEN_IS_MSI_FAMILY(adapter))
165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
166}
167
168static int
169netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
170{
171 int size = sizeof(struct nx_host_sds_ring) * count;
172
173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
174
175 return recv_ctx->sds_rings == NULL;
176}
177
178static void
179netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
180{
181 if (recv_ctx->sds_rings != NULL)
182 kfree(recv_ctx->sds_rings);
183
184 recv_ctx->sds_rings = NULL;
185}
186
187static int
188netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
189{
190 int ring;
191 struct nx_host_sds_ring *sds_ring;
192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
193
194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
195 return -ENOMEM;
196
197 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
198 sds_ring = &recv_ctx->sds_rings[ring];
199 netif_napi_add(netdev, &sds_ring->napi,
200 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
201 }
202
203 return 0;
204}
205
206static void
207netxen_napi_del(struct netxen_adapter *adapter)
208{
209 int ring;
210 struct nx_host_sds_ring *sds_ring;
211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
212
213 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
214 sds_ring = &recv_ctx->sds_rings[ring];
215 netif_napi_del(&sds_ring->napi);
216 }
217
218 netxen_free_sds_rings(&adapter->recv_ctx);
219}
220
221static void
222netxen_napi_enable(struct netxen_adapter *adapter)
223{
224 int ring;
225 struct nx_host_sds_ring *sds_ring;
226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
227
228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
229 sds_ring = &recv_ctx->sds_rings[ring];
230 napi_enable(&sds_ring->napi);
231 netxen_nic_enable_int(sds_ring);
232 }
233}
234
235static void
236netxen_napi_disable(struct netxen_adapter *adapter)
237{
238 int ring;
239 struct nx_host_sds_ring *sds_ring;
240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
241
242 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
243 sds_ring = &recv_ctx->sds_rings[ring];
244 netxen_nic_disable_int(sds_ring);
245 napi_synchronize(&sds_ring->napi);
246 napi_disable(&sds_ring->napi);
247 }
248}
249
250static int nx_set_dma_mask(struct netxen_adapter *adapter)
251{
252 struct pci_dev *pdev = adapter->pdev;
253 uint64_t mask, cmask;
254
255 adapter->pci_using_dac = 0;
256
257 mask = DMA_BIT_MASK(32);
258 cmask = DMA_BIT_MASK(32);
259
260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
261#ifndef CONFIG_IA64
262 mask = DMA_BIT_MASK(35);
263#endif
264 } else {
265 mask = DMA_BIT_MASK(39);
266 cmask = mask;
267 }
268
269 if (pci_set_dma_mask(pdev, mask) == 0 &&
270 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
271 adapter->pci_using_dac = 1;
272 return 0;
273 }
274
275 return -EIO;
276}
277
278/* Update addressable range if firmware supports it */
279static int
280nx_update_dma_mask(struct netxen_adapter *adapter)
281{
282 int change, shift, err;
283 uint64_t mask, old_mask, old_cmask;
284 struct pci_dev *pdev = adapter->pdev;
285
286 change = 0;
287
288 shift = NXRD32(adapter, CRB_DMA_SHIFT);
289 if (shift > 32)
290 return 0;
291
292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
293 change = 1;
294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
295 change = 1;
296
297 if (change) {
298 old_mask = pdev->dma_mask;
299 old_cmask = pdev->dev.coherent_dma_mask;
300
301 mask = DMA_BIT_MASK(32+shift);
302
303 err = pci_set_dma_mask(pdev, mask);
304 if (err)
305 goto err_out;
306
307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
308
309 err = pci_set_consistent_dma_mask(pdev, mask);
310 if (err)
311 goto err_out;
312 }
313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
314 }
315
316 return 0;
317
318err_out:
319 pci_set_dma_mask(pdev, old_mask);
320 pci_set_consistent_dma_mask(pdev, old_cmask);
321 return err;
322}
323
324static int
325netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
326{
327 u32 val, timeout;
328
329 if (first_boot == 0x55555555) {
330 /* This is the first boot after power up */
331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
332
333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
334 return 0;
335
336 /* PCI bus master workaround */
337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
338 if (!(first_boot & 0x4)) {
339 first_boot |= 0x4;
340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
341 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
342 }
343
344 /* This is the first boot after power up */
345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
346 if (first_boot != 0x80000f) {
347 /* clear the register for future unloads/loads */
348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
349 return -EIO;
350 }
351
352 /* Start P2 boot loader */
353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
355 timeout = 0;
356 do {
357 msleep(1);
358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
359
360 if (++timeout > 5000)
361 return -EIO;
362
363 } while (val == NETXEN_BDINFO_MAGIC);
364 }
365 return 0;
366}
367
368static void netxen_set_port_mode(struct netxen_adapter *adapter)
369{
370 u32 val, data;
371
372 val = adapter->ahw.board_type;
373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
376 data = NETXEN_PORT_MODE_802_3_AP;
377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
378 } else if (port_mode == NETXEN_PORT_MODE_XG) {
379 data = NETXEN_PORT_MODE_XG;
380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
382 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
385 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
387 } else {
388 data = NETXEN_PORT_MODE_AUTO_NEG;
389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
390 }
391
392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
393 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
397 }
398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
399 }
400}
401
402#define PCI_CAP_ID_GEN 0x10
403
404static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
405{
406 u32 pdevfuncsave;
407 u32 c8c9value = 0;
408 u32 chicken = 0;
409 u32 control = 0;
410 int i, pos;
411 struct pci_dev *pdev;
412
413 pdev = adapter->pdev;
414
415 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
416 /* clear chicken3.25:24 */
417 chicken &= 0xFCFFFFFF;
418 /*
419 * if gen1 and B0, set F1020 - if gen 2, do nothing
420 * if gen2 set to F1000
421 */
422 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
423 if (pos == 0xC0) {
424 pci_read_config_dword(pdev, pos + 0x10, &control);
425 if ((control & 0x000F0000) != 0x00020000) {
426 /* set chicken3.24 if gen1 */
427 chicken |= 0x01000000;
428 }
429 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
430 c8c9value = 0xF1000;
431 } else {
432 /* set chicken3.24 if gen1 */
433 chicken |= 0x01000000;
434 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
435 if (adapter->ahw.revision_id == NX_P3_B0)
436 c8c9value = 0xF1020;
437 else
438 c8c9value = 0;
439 }
440
441 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
442
443 if (!c8c9value)
444 return;
445
446 pdevfuncsave = pdev->devfn;
447 if (pdevfuncsave & 0x07)
448 return;
449
450 for (i = 0; i < 8; i++) {
451 pci_read_config_dword(pdev, pos + 8, &control);
452 pci_read_config_dword(pdev, pos + 8, &control);
453 pci_write_config_dword(pdev, pos + 8, c8c9value);
454 pdev->devfn++;
455 }
456 pdev->devfn = pdevfuncsave;
457}
458
459static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
460{
461 u32 control;
462 int pos;
463
464 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
465 if (pos) {
466 pci_read_config_dword(pdev, pos, &control);
467 if (enable)
468 control |= PCI_MSIX_FLAGS_ENABLE;
469 else
470 control = 0;
471 pci_write_config_dword(pdev, pos, control);
472 }
473}
474
475static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
476{
477 int i;
478
479 for (i = 0; i < count; i++)
480 adapter->msix_entries[i].entry = i;
481}
482
483static int
484netxen_read_mac_addr(struct netxen_adapter *adapter)
485{
486 int i;
487 unsigned char *p;
488 u64 mac_addr;
489 struct net_device *netdev = adapter->netdev;
490 struct pci_dev *pdev = adapter->pdev;
491
492 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
493 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
494 return -EIO;
495 } else {
496 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
497 return -EIO;
498 }
499
500 p = (unsigned char *)&mac_addr;
501 for (i = 0; i < 6; i++)
502 netdev->dev_addr[i] = *(p + 5 - i);
503
504 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
505 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
506
507 /* set station address */
508
509 if (!is_valid_ether_addr(netdev->perm_addr))
510 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
511
512 return 0;
513}
514
515static int netxen_nic_set_mac(struct net_device *netdev, void *p)
516{
517 struct netxen_adapter *adapter = netdev_priv(netdev);
518 struct sockaddr *addr = p;
519
520 if (!is_valid_ether_addr(addr->sa_data))
521 return -EADDRNOTAVAIL;
522
523 if (netif_running(netdev)) {
524 netif_device_detach(netdev);
525 netxen_napi_disable(adapter);
526 }
527
528 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
529 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
530 adapter->macaddr_set(adapter, addr->sa_data);
531
532 if (netif_running(netdev)) {
533 netif_device_attach(netdev);
534 netxen_napi_enable(adapter);
535 }
536 return 0;
537}
538
539static void netxen_set_multicast_list(struct net_device *dev)
540{
541 struct netxen_adapter *adapter = netdev_priv(dev);
542
543 adapter->set_multi(dev);
544}
545
546static netdev_features_t netxen_fix_features(struct net_device *dev,
547 netdev_features_t features)
548{
549 if (!(features & NETIF_F_RXCSUM)) {
550 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
551
552 features &= ~NETIF_F_LRO;
553 }
554
555 return features;
556}
557
558static int netxen_set_features(struct net_device *dev,
559 netdev_features_t features)
560{
561 struct netxen_adapter *adapter = netdev_priv(dev);
562 int hw_lro;
563
564 if (!((dev->features ^ features) & NETIF_F_LRO))
565 return 0;
566
567 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
568 : NETXEN_NIC_LRO_DISABLED;
569
570 if (netxen_config_hw_lro(adapter, hw_lro))
571 return -EIO;
572
573 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
574 return -EIO;
575
576 return 0;
577}
578
579static const struct net_device_ops netxen_netdev_ops = {
580 .ndo_open = netxen_nic_open,
581 .ndo_stop = netxen_nic_close,
582 .ndo_start_xmit = netxen_nic_xmit_frame,
583 .ndo_get_stats64 = netxen_nic_get_stats,
584 .ndo_validate_addr = eth_validate_addr,
585 .ndo_set_rx_mode = netxen_set_multicast_list,
586 .ndo_set_mac_address = netxen_nic_set_mac,
587 .ndo_change_mtu = netxen_nic_change_mtu,
588 .ndo_tx_timeout = netxen_tx_timeout,
589 .ndo_fix_features = netxen_fix_features,
590 .ndo_set_features = netxen_set_features,
591#ifdef CONFIG_NET_POLL_CONTROLLER
592 .ndo_poll_controller = netxen_nic_poll_controller,
593#endif
594};
595
596static void
597netxen_setup_intr(struct netxen_adapter *adapter)
598{
599 struct netxen_legacy_intr_set *legacy_intrp;
600 struct pci_dev *pdev = adapter->pdev;
601 int err, num_msix;
602
603 if (adapter->rss_supported) {
604 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
605 MSIX_ENTRIES_PER_ADAPTER : 2;
606 } else
607 num_msix = 1;
608
609 adapter->max_sds_rings = 1;
610
611 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
612
613 if (adapter->ahw.revision_id >= NX_P3_B0)
614 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
615 else
616 legacy_intrp = &legacy_intr[0];
617
618 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
619 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
620 legacy_intrp->tgt_status_reg);
621 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
622 legacy_intrp->tgt_mask_reg);
623 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
624 legacy_intrp->pci_int_reg);
625 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
626
627 if (adapter->ahw.revision_id >= NX_P3_B1)
628 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
629 ISR_INT_STATE_REG);
630 else
631 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
632 CRB_INT_VECTOR);
633
634 netxen_set_msix_bit(pdev, 0);
635
636 if (adapter->msix_supported) {
637
638 netxen_init_msix_entries(adapter, num_msix);
639 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
640 if (err == 0) {
641 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
642 netxen_set_msix_bit(pdev, 1);
643
644 if (adapter->rss_supported)
645 adapter->max_sds_rings = num_msix;
646
647 dev_info(&pdev->dev, "using msi-x interrupts\n");
648 return;
649 }
650
651 if (err > 0)
652 pci_disable_msix(pdev);
653
654 /* fall through for msi */
655 }
656
657 if (use_msi && !pci_enable_msi(pdev)) {
658 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
659 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
660 msi_tgt_status[adapter->ahw.pci_func]);
661 dev_info(&pdev->dev, "using msi interrupts\n");
662 adapter->msix_entries[0].vector = pdev->irq;
663 return;
664 }
665
666 dev_info(&pdev->dev, "using legacy interrupts\n");
667 adapter->msix_entries[0].vector = pdev->irq;
668}
669
670static void
671netxen_teardown_intr(struct netxen_adapter *adapter)
672{
673 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
674 pci_disable_msix(adapter->pdev);
675 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
676 pci_disable_msi(adapter->pdev);
677}
678
679static void
680netxen_cleanup_pci_map(struct netxen_adapter *adapter)
681{
682 if (adapter->ahw.db_base != NULL)
683 iounmap(adapter->ahw.db_base);
684 if (adapter->ahw.pci_base0 != NULL)
685 iounmap(adapter->ahw.pci_base0);
686 if (adapter->ahw.pci_base1 != NULL)
687 iounmap(adapter->ahw.pci_base1);
688 if (adapter->ahw.pci_base2 != NULL)
689 iounmap(adapter->ahw.pci_base2);
690}
691
692static int
693netxen_setup_pci_map(struct netxen_adapter *adapter)
694{
695 void __iomem *db_ptr = NULL;
696
697 resource_size_t mem_base, db_base;
698 unsigned long mem_len, db_len = 0;
699
700 struct pci_dev *pdev = adapter->pdev;
701 int pci_func = adapter->ahw.pci_func;
702 struct netxen_hardware_context *ahw = &adapter->ahw;
703
704 int err = 0;
705
706 /*
707 * Set the CRB window to invalid. If any register in window 0 is
708 * accessed it should set the window to 0 and then reset it to 1.
709 */
710 adapter->ahw.crb_win = -1;
711 adapter->ahw.ocm_win = -1;
712
713 /* remap phys address */
714 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
715 mem_len = pci_resource_len(pdev, 0);
716
717 /* 128 Meg of memory */
718 if (mem_len == NETXEN_PCI_128MB_SIZE) {
719
720 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
721 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
722 SECOND_PAGE_GROUP_SIZE);
723 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
724 THIRD_PAGE_GROUP_SIZE);
725 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
726 ahw->pci_base2 == NULL) {
727 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
728 err = -EIO;
729 goto err_out;
730 }
731
732 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
733
734 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
735
736 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
737 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
738 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
739 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
740 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
741 err = -EIO;
742 goto err_out;
743 }
744
745 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
746
747 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
748 if (ahw->pci_base0 == NULL) {
749 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
750 return -EIO;
751 }
752 ahw->pci_len0 = mem_len;
753 } else {
754 return -EIO;
755 }
756
757 netxen_setup_hwops(adapter);
758
759 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
760
761 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
762 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
763 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
764
765 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
766 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
767 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
768 }
769
770 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
771 goto skip_doorbell;
772
773 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
774 db_len = pci_resource_len(pdev, 4);
775
776 if (db_len == 0) {
777 printk(KERN_ERR "%s: doorbell is disabled\n",
778 netxen_nic_driver_name);
779 err = -EIO;
780 goto err_out;
781 }
782
783 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
784 if (!db_ptr) {
785 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
786 netxen_nic_driver_name);
787 err = -EIO;
788 goto err_out;
789 }
790
791skip_doorbell:
792 adapter->ahw.db_base = db_ptr;
793 adapter->ahw.db_len = db_len;
794 return 0;
795
796err_out:
797 netxen_cleanup_pci_map(adapter);
798 return err;
799}
800
801static void
802netxen_check_options(struct netxen_adapter *adapter)
803{
804 u32 fw_major, fw_minor, fw_build, prev_fw_version;
805 char brd_name[NETXEN_MAX_SHORT_NAME];
806 char serial_num[32];
807 int i, offset, val, err;
808 __le32 *ptr32;
809 struct pci_dev *pdev = adapter->pdev;
810
811 adapter->driver_mismatch = 0;
812
813 ptr32 = (__le32 *)&serial_num;
814 offset = NX_FW_SERIAL_NUM_OFFSET;
815 for (i = 0; i < 8; i++) {
816 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
817 dev_err(&pdev->dev, "error reading board info\n");
818 adapter->driver_mismatch = 1;
819 return;
820 }
821 ptr32[i] = cpu_to_le32(val);
822 offset += sizeof(u32);
823 }
824
825 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
826 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
827 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
828 prev_fw_version = adapter->fw_version;
829 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
830
831 /* Get FW Mini Coredump template and store it */
832 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
833 if (adapter->mdump.md_template == NULL ||
834 adapter->fw_version > prev_fw_version) {
835 kfree(adapter->mdump.md_template);
836 adapter->mdump.md_template = NULL;
837 err = netxen_setup_minidump(adapter);
838 if (err)
839 dev_err(&adapter->pdev->dev,
840 "Failed to setup minidump rcode = %d\n", err);
841 }
842 }
843
844 if (adapter->portnum == 0) {
845 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
846
847 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
848 module_name(THIS_MODULE),
849 brd_name, serial_num, adapter->ahw.revision_id);
850 }
851
852 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
853 adapter->driver_mismatch = 1;
854 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
855 fw_major, fw_minor, fw_build);
856 return;
857 }
858
859 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
860 i = NXRD32(adapter, NETXEN_SRE_MISC);
861 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
862 }
863
864 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
865 fw_major, fw_minor, fw_build,
866 adapter->ahw.cut_through ? "cut-through" : "legacy");
867
868 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
869 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
870
871 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
872 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
873 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
874 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
875 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
876 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
877 }
878
879 adapter->msix_supported = 0;
880 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
881 adapter->msix_supported = !!use_msi_x;
882 adapter->rss_supported = !!use_msi_x;
883 } else {
884 u32 flashed_ver = 0;
885 netxen_rom_fast_read(adapter,
886 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
887 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
888
889 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
890 switch (adapter->ahw.board_type) {
891 case NETXEN_BRDTYPE_P2_SB31_10G:
892 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
893 adapter->msix_supported = !!use_msi_x;
894 adapter->rss_supported = !!use_msi_x;
895 break;
896 default:
897 break;
898 }
899 }
900 }
901
902 adapter->num_txd = MAX_CMD_DESCRIPTORS;
903
904 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
905 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
906 adapter->max_rds_rings = 3;
907 } else {
908 adapter->num_lro_rxd = 0;
909 adapter->max_rds_rings = 2;
910 }
911}
912
913static int
914netxen_start_firmware(struct netxen_adapter *adapter)
915{
916 int val, err, first_boot;
917 struct pci_dev *pdev = adapter->pdev;
918
919 /* required for NX2031 dummy dma */
920 err = nx_set_dma_mask(adapter);
921 if (err)
922 return err;
923
924 err = netxen_can_start_firmware(adapter);
925
926 if (err < 0)
927 return err;
928
929 if (!err)
930 goto wait_init;
931
932 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
933
934 err = netxen_check_hw_init(adapter, first_boot);
935 if (err) {
936 dev_err(&pdev->dev, "error in init HW init sequence\n");
937 return err;
938 }
939
940 netxen_request_firmware(adapter);
941
942 err = netxen_need_fw_reset(adapter);
943 if (err < 0)
944 goto err_out;
945 if (err == 0)
946 goto pcie_strap_init;
947
948 if (first_boot != 0x55555555) {
949 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
950 netxen_pinit_from_rom(adapter);
951 msleep(1);
952 }
953
954 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
955 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
956 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
957
958 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
959 netxen_set_port_mode(adapter);
960
961 err = netxen_load_firmware(adapter);
962 if (err)
963 goto err_out;
964
965 netxen_release_firmware(adapter);
966
967 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
968
969 /* Initialize multicast addr pool owners */
970 val = 0x7654;
971 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
972 val |= 0x0f000000;
973 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
974
975 }
976
977 err = netxen_init_dummy_dma(adapter);
978 if (err)
979 goto err_out;
980
981 /*
982 * Tell the hardware our version number.
983 */
984 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
985 | ((_NETXEN_NIC_LINUX_MINOR << 8))
986 | (_NETXEN_NIC_LINUX_SUBVERSION);
987 NXWR32(adapter, CRB_DRIVER_VERSION, val);
988
989pcie_strap_init:
990 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
991 netxen_pcie_strap_init(adapter);
992
993wait_init:
994 /* Handshake with the card before we register the devices. */
995 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
996 if (err) {
997 netxen_free_dummy_dma(adapter);
998 goto err_out;
999 }
1000
1001 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1002
1003 nx_update_dma_mask(adapter);
1004
1005 netxen_check_options(adapter);
1006
1007 adapter->need_fw_reset = 0;
1008
1009 /* fall through and release firmware */
1010
1011err_out:
1012 netxen_release_firmware(adapter);
1013 return err;
1014}
1015
1016static int
1017netxen_nic_request_irq(struct netxen_adapter *adapter)
1018{
1019 irq_handler_t handler;
1020 struct nx_host_sds_ring *sds_ring;
1021 int err, ring;
1022
1023 unsigned long flags = 0;
1024 struct net_device *netdev = adapter->netdev;
1025 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1026
1027 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1028 handler = netxen_msix_intr;
1029 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1030 handler = netxen_msi_intr;
1031 else {
1032 flags |= IRQF_SHARED;
1033 handler = netxen_intr;
1034 }
1035 adapter->irq = netdev->irq;
1036
1037 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1038 sds_ring = &recv_ctx->sds_rings[ring];
1039 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1040 err = request_irq(sds_ring->irq, handler,
1041 flags, sds_ring->name, sds_ring);
1042 if (err)
1043 return err;
1044 }
1045
1046 return 0;
1047}
1048
1049static void
1050netxen_nic_free_irq(struct netxen_adapter *adapter)
1051{
1052 int ring;
1053 struct nx_host_sds_ring *sds_ring;
1054
1055 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1056
1057 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1058 sds_ring = &recv_ctx->sds_rings[ring];
1059 free_irq(sds_ring->irq, sds_ring);
1060 }
1061}
1062
1063static void
1064netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1065{
1066 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1067 adapter->coal.normal.data.rx_time_us =
1068 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1069 adapter->coal.normal.data.rx_packets =
1070 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1071 adapter->coal.normal.data.tx_time_us =
1072 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1073 adapter->coal.normal.data.tx_packets =
1074 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1075}
1076
1077/* with rtnl_lock */
1078static int
1079__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1080{
1081 int err;
1082
1083 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1084 return -EIO;
1085
1086 err = adapter->init_port(adapter, adapter->physical_port);
1087 if (err) {
1088 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1089 netxen_nic_driver_name, adapter->portnum);
1090 return err;
1091 }
1092 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1093 adapter->macaddr_set(adapter, adapter->mac_addr);
1094
1095 adapter->set_multi(netdev);
1096 adapter->set_mtu(adapter, netdev->mtu);
1097
1098 adapter->ahw.linkup = 0;
1099
1100 if (adapter->max_sds_rings > 1)
1101 netxen_config_rss(adapter, 1);
1102
1103 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1104 netxen_config_intr_coalesce(adapter);
1105
1106 if (netdev->features & NETIF_F_LRO)
1107 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1108
1109 netxen_napi_enable(adapter);
1110
1111 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1112 netxen_linkevent_request(adapter, 1);
1113 else
1114 netxen_nic_set_link_parameters(adapter);
1115
1116 set_bit(__NX_DEV_UP, &adapter->state);
1117 return 0;
1118}
1119
1120/* Usage: During resume and firmware recovery module.*/
1121
1122static inline int
1123netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1124{
1125 int err = 0;
1126
1127 rtnl_lock();
1128 if (netif_running(netdev))
1129 err = __netxen_nic_up(adapter, netdev);
1130 rtnl_unlock();
1131
1132 return err;
1133}
1134
1135/* with rtnl_lock */
1136static void
1137__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1138{
1139 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1140 return;
1141
1142 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1143 return;
1144
1145 smp_mb();
1146 spin_lock(&adapter->tx_clean_lock);
1147 netif_carrier_off(netdev);
1148 netif_tx_disable(netdev);
1149
1150 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1151 netxen_linkevent_request(adapter, 0);
1152
1153 if (adapter->stop_port)
1154 adapter->stop_port(adapter);
1155
1156 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1157 netxen_p3_free_mac_list(adapter);
1158
1159 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1160
1161 netxen_napi_disable(adapter);
1162
1163 netxen_release_tx_buffers(adapter);
1164 spin_unlock(&adapter->tx_clean_lock);
1165}
1166
1167/* Usage: During suspend and firmware recovery module */
1168
1169static inline void
1170netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1171{
1172 rtnl_lock();
1173 if (netif_running(netdev))
1174 __netxen_nic_down(adapter, netdev);
1175 rtnl_unlock();
1176
1177}
1178
1179static int
1180netxen_nic_attach(struct netxen_adapter *adapter)
1181{
1182 struct net_device *netdev = adapter->netdev;
1183 struct pci_dev *pdev = adapter->pdev;
1184 int err, ring;
1185 struct nx_host_rds_ring *rds_ring;
1186 struct nx_host_tx_ring *tx_ring;
1187 u32 capab2;
1188
1189 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1190 return 0;
1191
1192 err = netxen_init_firmware(adapter);
1193 if (err)
1194 return err;
1195
1196 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1197 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1198 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1199 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1200 adapter->flags |= NETXEN_FW_MSS_CAP;
1201 }
1202
1203 err = netxen_napi_add(adapter, netdev);
1204 if (err)
1205 return err;
1206
1207 err = netxen_alloc_sw_resources(adapter);
1208 if (err) {
1209 printk(KERN_ERR "%s: Error in setting sw resources\n",
1210 netdev->name);
1211 return err;
1212 }
1213
1214 err = netxen_alloc_hw_resources(adapter);
1215 if (err) {
1216 printk(KERN_ERR "%s: Error in setting hw resources\n",
1217 netdev->name);
1218 goto err_out_free_sw;
1219 }
1220
1221 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1222 tx_ring = adapter->tx_ring;
1223 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1224 crb_cmd_producer[adapter->portnum]);
1225 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1226 crb_cmd_consumer[adapter->portnum]);
1227
1228 tx_ring->producer = 0;
1229 tx_ring->sw_consumer = 0;
1230
1231 netxen_nic_update_cmd_producer(adapter, tx_ring);
1232 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1233 }
1234
1235 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1236 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1237 netxen_post_rx_buffers(adapter, ring, rds_ring);
1238 }
1239
1240 err = netxen_nic_request_irq(adapter);
1241 if (err) {
1242 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1243 netdev->name);
1244 goto err_out_free_rxbuf;
1245 }
1246
1247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1248 netxen_nic_init_coalesce_defaults(adapter);
1249
1250 netxen_create_sysfs_entries(adapter);
1251
1252 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1253 return 0;
1254
1255err_out_free_rxbuf:
1256 netxen_release_rx_buffers(adapter);
1257 netxen_free_hw_resources(adapter);
1258err_out_free_sw:
1259 netxen_free_sw_resources(adapter);
1260 return err;
1261}
1262
1263static void
1264netxen_nic_detach(struct netxen_adapter *adapter)
1265{
1266 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1267 return;
1268
1269 netxen_remove_sysfs_entries(adapter);
1270
1271 netxen_free_hw_resources(adapter);
1272 netxen_release_rx_buffers(adapter);
1273 netxen_nic_free_irq(adapter);
1274 netxen_napi_del(adapter);
1275 netxen_free_sw_resources(adapter);
1276
1277 adapter->is_up = 0;
1278}
1279
1280int
1281netxen_nic_reset_context(struct netxen_adapter *adapter)
1282{
1283 int err = 0;
1284 struct net_device *netdev = adapter->netdev;
1285
1286 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1287 return -EBUSY;
1288
1289 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1290
1291 netif_device_detach(netdev);
1292
1293 if (netif_running(netdev))
1294 __netxen_nic_down(adapter, netdev);
1295
1296 netxen_nic_detach(adapter);
1297
1298 if (netif_running(netdev)) {
1299 err = netxen_nic_attach(adapter);
1300 if (!err)
1301 err = __netxen_nic_up(adapter, netdev);
1302
1303 if (err)
1304 goto done;
1305 }
1306
1307 netif_device_attach(netdev);
1308 }
1309
1310done:
1311 clear_bit(__NX_RESETTING, &adapter->state);
1312 return err;
1313}
1314
1315static int
1316netxen_setup_netdev(struct netxen_adapter *adapter,
1317 struct net_device *netdev)
1318{
1319 int err = 0;
1320 struct pci_dev *pdev = adapter->pdev;
1321
1322 adapter->mc_enabled = 0;
1323 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1324 adapter->max_mc_count = 38;
1325 else
1326 adapter->max_mc_count = 16;
1327
1328 netdev->netdev_ops = &netxen_netdev_ops;
1329 netdev->watchdog_timeo = 5*HZ;
1330
1331 netxen_nic_change_mtu(netdev, netdev->mtu);
1332
1333 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1334
1335 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1336 NETIF_F_RXCSUM;
1337
1338 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1339 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1340
1341 netdev->vlan_features |= netdev->hw_features;
1342
1343 if (adapter->pci_using_dac) {
1344 netdev->features |= NETIF_F_HIGHDMA;
1345 netdev->vlan_features |= NETIF_F_HIGHDMA;
1346 }
1347
1348 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1349 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
1350
1351 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1352 netdev->hw_features |= NETIF_F_LRO;
1353
1354 netdev->features |= netdev->hw_features;
1355
1356 netdev->irq = adapter->msix_entries[0].vector;
1357
1358 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1359
1360 if (netxen_read_mac_addr(adapter))
1361 dev_warn(&pdev->dev, "failed to read mac addr\n");
1362
1363 netif_carrier_off(netdev);
1364
1365 err = register_netdev(netdev);
1366 if (err) {
1367 dev_err(&pdev->dev, "failed to register net device\n");
1368 return err;
1369 }
1370
1371 return 0;
1372}
1373
1374#ifdef CONFIG_PCIEAER
1375static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1376{
1377 struct pci_dev *pdev = adapter->pdev;
1378 struct pci_dev *root = pdev->bus->self;
1379 u32 aer_pos;
1380
1381 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1382 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1383 return;
1384
1385 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1386 return;
1387
1388 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1389 if (!aer_pos)
1390 return;
1391
1392 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1393}
1394#endif
1395
1396static int __devinit
1397netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1398{
1399 struct net_device *netdev = NULL;
1400 struct netxen_adapter *adapter = NULL;
1401 int i = 0, err;
1402 int pci_func_id = PCI_FUNC(pdev->devfn);
1403 uint8_t revision_id;
1404 u32 val;
1405
1406 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1407 pr_warning("%s: chip revisions between 0x%x-0x%x "
1408 "will not be enabled.\n",
1409 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1410 return -ENODEV;
1411 }
1412
1413 if ((err = pci_enable_device(pdev)))
1414 return err;
1415
1416 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1417 err = -ENODEV;
1418 goto err_out_disable_pdev;
1419 }
1420
1421 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1422 goto err_out_disable_pdev;
1423
1424 if (NX_IS_REVISION_P3(pdev->revision))
1425 pci_enable_pcie_error_reporting(pdev);
1426
1427 pci_set_master(pdev);
1428
1429 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1430 if(!netdev) {
1431 err = -ENOMEM;
1432 goto err_out_free_res;
1433 }
1434
1435 SET_NETDEV_DEV(netdev, &pdev->dev);
1436
1437 adapter = netdev_priv(netdev);
1438 adapter->netdev = netdev;
1439 adapter->pdev = pdev;
1440 adapter->ahw.pci_func = pci_func_id;
1441
1442 revision_id = pdev->revision;
1443 adapter->ahw.revision_id = revision_id;
1444
1445 rwlock_init(&adapter->ahw.crb_lock);
1446 spin_lock_init(&adapter->ahw.mem_lock);
1447
1448 spin_lock_init(&adapter->tx_clean_lock);
1449 INIT_LIST_HEAD(&adapter->mac_list);
1450 INIT_LIST_HEAD(&adapter->vlan_ip_list);
1451
1452 err = netxen_setup_pci_map(adapter);
1453 if (err)
1454 goto err_out_free_netdev;
1455
1456 /* This will be reset for mezz cards */
1457 adapter->portnum = pci_func_id;
1458
1459 err = netxen_nic_get_board_info(adapter);
1460 if (err) {
1461 dev_err(&pdev->dev, "Error getting board config info.\n");
1462 goto err_out_iounmap;
1463 }
1464
1465#ifdef CONFIG_PCIEAER
1466 netxen_mask_aer_correctable(adapter);
1467#endif
1468
1469 /* Mezz cards have PCI function 0,2,3 enabled */
1470 switch (adapter->ahw.board_type) {
1471 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1472 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1473 if (pci_func_id >= 2)
1474 adapter->portnum = pci_func_id - 2;
1475 break;
1476 default:
1477 break;
1478 }
1479
1480 err = netxen_check_flash_fw_compatibility(adapter);
1481 if (err)
1482 goto err_out_iounmap;
1483
1484 if (adapter->portnum == 0) {
1485 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1486 if (val != 0xffffffff && val != 0) {
1487 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1488 adapter->need_fw_reset = 1;
1489 }
1490 }
1491
1492 err = netxen_start_firmware(adapter);
1493 if (err)
1494 goto err_out_decr_ref;
1495
1496 /*
1497 * See if the firmware gave us a virtual-physical port mapping.
1498 */
1499 adapter->physical_port = adapter->portnum;
1500 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1501 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1502 if (i != 0x55555555)
1503 adapter->physical_port = i;
1504 }
1505
1506 netxen_nic_clear_stats(adapter);
1507
1508 netxen_setup_intr(adapter);
1509
1510 err = netxen_setup_netdev(adapter, netdev);
1511 if (err)
1512 goto err_out_disable_msi;
1513
1514 pci_set_drvdata(pdev, adapter);
1515
1516 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1517
1518 switch (adapter->ahw.port_type) {
1519 case NETXEN_NIC_GBE:
1520 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1521 adapter->netdev->name);
1522 break;
1523 case NETXEN_NIC_XGBE:
1524 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1525 adapter->netdev->name);
1526 break;
1527 }
1528
1529 netxen_create_diag_entries(adapter);
1530
1531 return 0;
1532
1533err_out_disable_msi:
1534 netxen_teardown_intr(adapter);
1535
1536 netxen_free_dummy_dma(adapter);
1537
1538err_out_decr_ref:
1539 nx_decr_dev_ref_cnt(adapter);
1540
1541err_out_iounmap:
1542 netxen_cleanup_pci_map(adapter);
1543
1544err_out_free_netdev:
1545 free_netdev(netdev);
1546
1547err_out_free_res:
1548 pci_release_regions(pdev);
1549
1550err_out_disable_pdev:
1551 pci_set_drvdata(pdev, NULL);
1552 pci_disable_device(pdev);
1553 return err;
1554}
1555
1556static
1557void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1558{
1559 kfree(adapter->mdump.md_template);
1560 adapter->mdump.md_template = NULL;
1561
1562 if (adapter->mdump.md_capture_buff) {
1563 vfree(adapter->mdump.md_capture_buff);
1564 adapter->mdump.md_capture_buff = NULL;
1565 }
1566}
1567
1568static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1569{
1570 struct netxen_adapter *adapter;
1571 struct net_device *netdev;
1572
1573 adapter = pci_get_drvdata(pdev);
1574 if (adapter == NULL)
1575 return;
1576
1577 netdev = adapter->netdev;
1578
1579 netxen_cancel_fw_work(adapter);
1580
1581 unregister_netdev(netdev);
1582
1583 cancel_work_sync(&adapter->tx_timeout_task);
1584
1585 netxen_free_vlan_ip_list(adapter);
1586 netxen_nic_detach(adapter);
1587
1588 nx_decr_dev_ref_cnt(adapter);
1589
1590 if (adapter->portnum == 0)
1591 netxen_free_dummy_dma(adapter);
1592
1593 clear_bit(__NX_RESETTING, &adapter->state);
1594
1595 netxen_teardown_intr(adapter);
1596
1597 netxen_remove_diag_entries(adapter);
1598
1599 netxen_cleanup_pci_map(adapter);
1600
1601 netxen_release_firmware(adapter);
1602
1603 if (NX_IS_REVISION_P3(pdev->revision)) {
1604 netxen_cleanup_minidump(adapter);
1605 pci_disable_pcie_error_reporting(pdev);
1606 }
1607
1608 pci_release_regions(pdev);
1609 pci_disable_device(pdev);
1610 pci_set_drvdata(pdev, NULL);
1611
1612 free_netdev(netdev);
1613}
1614
1615static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1616{
1617 struct net_device *netdev = adapter->netdev;
1618
1619 netif_device_detach(netdev);
1620
1621 netxen_cancel_fw_work(adapter);
1622
1623 if (netif_running(netdev))
1624 netxen_nic_down(adapter, netdev);
1625
1626 cancel_work_sync(&adapter->tx_timeout_task);
1627
1628 netxen_nic_detach(adapter);
1629
1630 if (adapter->portnum == 0)
1631 netxen_free_dummy_dma(adapter);
1632
1633 nx_decr_dev_ref_cnt(adapter);
1634
1635 clear_bit(__NX_RESETTING, &adapter->state);
1636}
1637
1638static int netxen_nic_attach_func(struct pci_dev *pdev)
1639{
1640 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1641 struct net_device *netdev = adapter->netdev;
1642 int err;
1643
1644 err = pci_enable_device(pdev);
1645 if (err)
1646 return err;
1647
1648 pci_set_power_state(pdev, PCI_D0);
1649 pci_set_master(pdev);
1650 pci_restore_state(pdev);
1651
1652 adapter->ahw.crb_win = -1;
1653 adapter->ahw.ocm_win = -1;
1654
1655 err = netxen_start_firmware(adapter);
1656 if (err) {
1657 dev_err(&pdev->dev, "failed to start firmware\n");
1658 return err;
1659 }
1660
1661 if (netif_running(netdev)) {
1662 err = netxen_nic_attach(adapter);
1663 if (err)
1664 goto err_out;
1665
1666 err = netxen_nic_up(adapter, netdev);
1667 if (err)
1668 goto err_out_detach;
1669
1670 netxen_restore_indev_addr(netdev, NETDEV_UP);
1671 }
1672
1673 netif_device_attach(netdev);
1674 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1675 return 0;
1676
1677err_out_detach:
1678 netxen_nic_detach(adapter);
1679err_out:
1680 nx_decr_dev_ref_cnt(adapter);
1681 return err;
1682}
1683
1684static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1685 pci_channel_state_t state)
1686{
1687 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1688
1689 if (state == pci_channel_io_perm_failure)
1690 return PCI_ERS_RESULT_DISCONNECT;
1691
1692 if (nx_dev_request_aer(adapter))
1693 return PCI_ERS_RESULT_RECOVERED;
1694
1695 netxen_nic_detach_func(adapter);
1696
1697 pci_disable_device(pdev);
1698
1699 return PCI_ERS_RESULT_NEED_RESET;
1700}
1701
1702static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1703{
1704 int err = 0;
1705
1706 err = netxen_nic_attach_func(pdev);
1707
1708 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1709}
1710
1711static void netxen_io_resume(struct pci_dev *pdev)
1712{
1713 pci_cleanup_aer_uncorrect_error_status(pdev);
1714}
1715
1716static void netxen_nic_shutdown(struct pci_dev *pdev)
1717{
1718 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1719
1720 netxen_nic_detach_func(adapter);
1721
1722 if (pci_save_state(pdev))
1723 return;
1724
1725 if (netxen_nic_wol_supported(adapter)) {
1726 pci_enable_wake(pdev, PCI_D3cold, 1);
1727 pci_enable_wake(pdev, PCI_D3hot, 1);
1728 }
1729
1730 pci_disable_device(pdev);
1731}
1732
1733#ifdef CONFIG_PM
1734static int
1735netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1736{
1737 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1738 int retval;
1739
1740 netxen_nic_detach_func(adapter);
1741
1742 retval = pci_save_state(pdev);
1743 if (retval)
1744 return retval;
1745
1746 if (netxen_nic_wol_supported(adapter)) {
1747 pci_enable_wake(pdev, PCI_D3cold, 1);
1748 pci_enable_wake(pdev, PCI_D3hot, 1);
1749 }
1750
1751 pci_disable_device(pdev);
1752 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1753
1754 return 0;
1755}
1756
1757static int
1758netxen_nic_resume(struct pci_dev *pdev)
1759{
1760 return netxen_nic_attach_func(pdev);
1761}
1762#endif
1763
1764static int netxen_nic_open(struct net_device *netdev)
1765{
1766 struct netxen_adapter *adapter = netdev_priv(netdev);
1767 int err = 0;
1768
1769 if (adapter->driver_mismatch)
1770 return -EIO;
1771
1772 err = netxen_nic_attach(adapter);
1773 if (err)
1774 return err;
1775
1776 err = __netxen_nic_up(adapter, netdev);
1777 if (err)
1778 goto err_out;
1779
1780 netif_start_queue(netdev);
1781
1782 return 0;
1783
1784err_out:
1785 netxen_nic_detach(adapter);
1786 return err;
1787}
1788
1789/*
1790 * netxen_nic_close - Disables a network interface entry point
1791 */
1792static int netxen_nic_close(struct net_device *netdev)
1793{
1794 struct netxen_adapter *adapter = netdev_priv(netdev);
1795
1796 __netxen_nic_down(adapter, netdev);
1797 return 0;
1798}
1799
1800static void
1801netxen_tso_check(struct net_device *netdev,
1802 struct nx_host_tx_ring *tx_ring,
1803 struct cmd_desc_type0 *first_desc,
1804 struct sk_buff *skb)
1805{
1806 u8 opcode = TX_ETHER_PKT;
1807 __be16 protocol = skb->protocol;
1808 u16 flags = 0, vid = 0;
1809 u32 producer;
1810 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1811 struct cmd_desc_type0 *hwdesc;
1812 struct vlan_ethhdr *vh;
1813
1814 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1815
1816 vh = (struct vlan_ethhdr *)skb->data;
1817 protocol = vh->h_vlan_encapsulated_proto;
1818 flags = FLAGS_VLAN_TAGGED;
1819
1820 } else if (vlan_tx_tag_present(skb)) {
1821 flags = FLAGS_VLAN_OOB;
1822 vid = vlan_tx_tag_get(skb);
1823 netxen_set_tx_vlan_tci(first_desc, vid);
1824 vlan_oob = 1;
1825 }
1826
1827 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1828 skb_shinfo(skb)->gso_size > 0) {
1829
1830 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1831
1832 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1833 first_desc->total_hdr_length = hdr_len;
1834 if (vlan_oob) {
1835 first_desc->total_hdr_length += VLAN_HLEN;
1836 first_desc->tcp_hdr_offset = VLAN_HLEN;
1837 first_desc->ip_hdr_offset = VLAN_HLEN;
1838 /* Only in case of TSO on vlan device */
1839 flags |= FLAGS_VLAN_TAGGED;
1840 }
1841
1842 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1843 TX_TCP_LSO6 : TX_TCP_LSO;
1844 tso = 1;
1845
1846 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1847 u8 l4proto;
1848
1849 if (protocol == cpu_to_be16(ETH_P_IP)) {
1850 l4proto = ip_hdr(skb)->protocol;
1851
1852 if (l4proto == IPPROTO_TCP)
1853 opcode = TX_TCP_PKT;
1854 else if(l4proto == IPPROTO_UDP)
1855 opcode = TX_UDP_PKT;
1856 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1857 l4proto = ipv6_hdr(skb)->nexthdr;
1858
1859 if (l4proto == IPPROTO_TCP)
1860 opcode = TX_TCPV6_PKT;
1861 else if(l4proto == IPPROTO_UDP)
1862 opcode = TX_UDPV6_PKT;
1863 }
1864 }
1865
1866 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1867 first_desc->ip_hdr_offset += skb_network_offset(skb);
1868 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1869
1870 if (!tso)
1871 return;
1872
1873 /* For LSO, we need to copy the MAC/IP/TCP headers into
1874 * the descriptor ring
1875 */
1876 producer = tx_ring->producer;
1877 copied = 0;
1878 offset = 2;
1879
1880 if (vlan_oob) {
1881 /* Create a TSO vlan header template for firmware */
1882
1883 hwdesc = &tx_ring->desc_head[producer];
1884 tx_ring->cmd_buf_arr[producer].skb = NULL;
1885
1886 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1887 hdr_len + VLAN_HLEN);
1888
1889 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1890 skb_copy_from_linear_data(skb, vh, 12);
1891 vh->h_vlan_proto = htons(ETH_P_8021Q);
1892 vh->h_vlan_TCI = htons(vid);
1893 skb_copy_from_linear_data_offset(skb, 12,
1894 (char *)vh + 16, copy_len - 16);
1895
1896 copied = copy_len - VLAN_HLEN;
1897 offset = 0;
1898
1899 producer = get_next_index(producer, tx_ring->num_desc);
1900 }
1901
1902 while (copied < hdr_len) {
1903
1904 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1905 (hdr_len - copied));
1906
1907 hwdesc = &tx_ring->desc_head[producer];
1908 tx_ring->cmd_buf_arr[producer].skb = NULL;
1909
1910 skb_copy_from_linear_data_offset(skb, copied,
1911 (char *)hwdesc + offset, copy_len);
1912
1913 copied += copy_len;
1914 offset = 0;
1915
1916 producer = get_next_index(producer, tx_ring->num_desc);
1917 }
1918
1919 tx_ring->producer = producer;
1920 barrier();
1921}
1922
1923static int
1924netxen_map_tx_skb(struct pci_dev *pdev,
1925 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1926{
1927 struct netxen_skb_frag *nf;
1928 struct skb_frag_struct *frag;
1929 int i, nr_frags;
1930 dma_addr_t map;
1931
1932 nr_frags = skb_shinfo(skb)->nr_frags;
1933 nf = &pbuf->frag_array[0];
1934
1935 map = pci_map_single(pdev, skb->data,
1936 skb_headlen(skb), PCI_DMA_TODEVICE);
1937 if (pci_dma_mapping_error(pdev, map))
1938 goto out_err;
1939
1940 nf->dma = map;
1941 nf->length = skb_headlen(skb);
1942
1943 for (i = 0; i < nr_frags; i++) {
1944 frag = &skb_shinfo(skb)->frags[i];
1945 nf = &pbuf->frag_array[i+1];
1946
1947 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1948 DMA_TO_DEVICE);
1949 if (dma_mapping_error(&pdev->dev, map))
1950 goto unwind;
1951
1952 nf->dma = map;
1953 nf->length = skb_frag_size(frag);
1954 }
1955
1956 return 0;
1957
1958unwind:
1959 while (--i >= 0) {
1960 nf = &pbuf->frag_array[i+1];
1961 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1962 }
1963
1964 nf = &pbuf->frag_array[0];
1965 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1966
1967out_err:
1968 return -ENOMEM;
1969}
1970
1971static inline void
1972netxen_clear_cmddesc(u64 *desc)
1973{
1974 desc[0] = 0ULL;
1975 desc[2] = 0ULL;
1976}
1977
1978static netdev_tx_t
1979netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1980{
1981 struct netxen_adapter *adapter = netdev_priv(netdev);
1982 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1983 struct netxen_cmd_buffer *pbuf;
1984 struct netxen_skb_frag *buffrag;
1985 struct cmd_desc_type0 *hwdesc, *first_desc;
1986 struct pci_dev *pdev;
1987 int i, k;
1988 int delta = 0;
1989 struct skb_frag_struct *frag;
1990
1991 u32 producer;
1992 int frag_count, no_of_desc;
1993 u32 num_txd = tx_ring->num_desc;
1994
1995 frag_count = skb_shinfo(skb)->nr_frags + 1;
1996
1997 /* 14 frags supported for normal packet and
1998 * 32 frags supported for TSO packet
1999 */
2000 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2001
2002 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2003 frag = &skb_shinfo(skb)->frags[i];
2004 delta += skb_frag_size(frag);
2005 }
2006
2007 if (!__pskb_pull_tail(skb, delta))
2008 goto drop_packet;
2009
2010 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2011 }
2012 /* 4 fragments per cmd des */
2013 no_of_desc = (frag_count + 3) >> 2;
2014
2015 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2016 netif_stop_queue(netdev);
2017 smp_mb();
2018 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2019 netif_start_queue(netdev);
2020 else
2021 return NETDEV_TX_BUSY;
2022 }
2023
2024 producer = tx_ring->producer;
2025 pbuf = &tx_ring->cmd_buf_arr[producer];
2026
2027 pdev = adapter->pdev;
2028
2029 if (netxen_map_tx_skb(pdev, skb, pbuf))
2030 goto drop_packet;
2031
2032 pbuf->skb = skb;
2033 pbuf->frag_count = frag_count;
2034
2035 first_desc = hwdesc = &tx_ring->desc_head[producer];
2036 netxen_clear_cmddesc((u64 *)hwdesc);
2037
2038 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2039 netxen_set_tx_port(first_desc, adapter->portnum);
2040
2041 for (i = 0; i < frag_count; i++) {
2042
2043 k = i % 4;
2044
2045 if ((k == 0) && (i > 0)) {
2046 /* move to next desc.*/
2047 producer = get_next_index(producer, num_txd);
2048 hwdesc = &tx_ring->desc_head[producer];
2049 netxen_clear_cmddesc((u64 *)hwdesc);
2050 tx_ring->cmd_buf_arr[producer].skb = NULL;
2051 }
2052
2053 buffrag = &pbuf->frag_array[i];
2054
2055 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2056 switch (k) {
2057 case 0:
2058 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2059 break;
2060 case 1:
2061 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2062 break;
2063 case 2:
2064 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2065 break;
2066 case 3:
2067 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2068 break;
2069 }
2070 }
2071
2072 tx_ring->producer = get_next_index(producer, num_txd);
2073
2074 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2075
2076 adapter->stats.txbytes += skb->len;
2077 adapter->stats.xmitcalled++;
2078
2079 netxen_nic_update_cmd_producer(adapter, tx_ring);
2080
2081 return NETDEV_TX_OK;
2082
2083drop_packet:
2084 adapter->stats.txdropped++;
2085 dev_kfree_skb_any(skb);
2086 return NETDEV_TX_OK;
2087}
2088
2089static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2090{
2091 struct net_device *netdev = adapter->netdev;
2092 uint32_t temp, temp_state, temp_val;
2093 int rv = 0;
2094
2095 temp = NXRD32(adapter, CRB_TEMP_STATE);
2096
2097 temp_state = nx_get_temp_state(temp);
2098 temp_val = nx_get_temp_val(temp);
2099
2100 if (temp_state == NX_TEMP_PANIC) {
2101 printk(KERN_ALERT
2102 "%s: Device temperature %d degrees C exceeds"
2103 " maximum allowed. Hardware has been shut down.\n",
2104 netdev->name, temp_val);
2105 rv = 1;
2106 } else if (temp_state == NX_TEMP_WARN) {
2107 if (adapter->temp == NX_TEMP_NORMAL) {
2108 printk(KERN_ALERT
2109 "%s: Device temperature %d degrees C "
2110 "exceeds operating range."
2111 " Immediate action needed.\n",
2112 netdev->name, temp_val);
2113 }
2114 } else {
2115 if (adapter->temp == NX_TEMP_WARN) {
2116 printk(KERN_INFO
2117 "%s: Device temperature is now %d degrees C"
2118 " in normal range.\n", netdev->name,
2119 temp_val);
2120 }
2121 }
2122 adapter->temp = temp_state;
2123 return rv;
2124}
2125
2126void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2127{
2128 struct net_device *netdev = adapter->netdev;
2129
2130 if (adapter->ahw.linkup && !linkup) {
2131 printk(KERN_INFO "%s: %s NIC Link is down\n",
2132 netxen_nic_driver_name, netdev->name);
2133 adapter->ahw.linkup = 0;
2134 if (netif_running(netdev)) {
2135 netif_carrier_off(netdev);
2136 netif_stop_queue(netdev);
2137 }
2138 adapter->link_changed = !adapter->has_link_events;
2139 } else if (!adapter->ahw.linkup && linkup) {
2140 printk(KERN_INFO "%s: %s NIC Link is up\n",
2141 netxen_nic_driver_name, netdev->name);
2142 adapter->ahw.linkup = 1;
2143 if (netif_running(netdev)) {
2144 netif_carrier_on(netdev);
2145 netif_wake_queue(netdev);
2146 }
2147 adapter->link_changed = !adapter->has_link_events;
2148 }
2149}
2150
2151static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2152{
2153 u32 val, port, linkup;
2154
2155 port = adapter->physical_port;
2156
2157 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2158 val = NXRD32(adapter, CRB_XG_STATE_P3);
2159 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2160 linkup = (val == XG_LINK_UP_P3);
2161 } else {
2162 val = NXRD32(adapter, CRB_XG_STATE);
2163 val = (val >> port*8) & 0xff;
2164 linkup = (val == XG_LINK_UP);
2165 }
2166
2167 netxen_advert_link_change(adapter, linkup);
2168}
2169
2170static void netxen_tx_timeout(struct net_device *netdev)
2171{
2172 struct netxen_adapter *adapter = netdev_priv(netdev);
2173
2174 if (test_bit(__NX_RESETTING, &adapter->state))
2175 return;
2176
2177 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2178 schedule_work(&adapter->tx_timeout_task);
2179}
2180
2181static void netxen_tx_timeout_task(struct work_struct *work)
2182{
2183 struct netxen_adapter *adapter =
2184 container_of(work, struct netxen_adapter, tx_timeout_task);
2185
2186 if (!netif_running(adapter->netdev))
2187 return;
2188
2189 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2190 return;
2191
2192 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2193 goto request_reset;
2194
2195 rtnl_lock();
2196 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2197 /* try to scrub interrupt */
2198 netxen_napi_disable(adapter);
2199
2200 netxen_napi_enable(adapter);
2201
2202 netif_wake_queue(adapter->netdev);
2203
2204 clear_bit(__NX_RESETTING, &adapter->state);
2205 } else {
2206 clear_bit(__NX_RESETTING, &adapter->state);
2207 if (netxen_nic_reset_context(adapter)) {
2208 rtnl_unlock();
2209 goto request_reset;
2210 }
2211 }
2212 adapter->netdev->trans_start = jiffies;
2213 rtnl_unlock();
2214 return;
2215
2216request_reset:
2217 adapter->need_fw_reset = 1;
2218 clear_bit(__NX_RESETTING, &adapter->state);
2219}
2220
2221static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2222 struct rtnl_link_stats64 *stats)
2223{
2224 struct netxen_adapter *adapter = netdev_priv(netdev);
2225
2226 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2227 stats->tx_packets = adapter->stats.xmitfinished;
2228 stats->rx_bytes = adapter->stats.rxbytes;
2229 stats->tx_bytes = adapter->stats.txbytes;
2230 stats->rx_dropped = adapter->stats.rxdropped;
2231 stats->tx_dropped = adapter->stats.txdropped;
2232
2233 return stats;
2234}
2235
2236static irqreturn_t netxen_intr(int irq, void *data)
2237{
2238 struct nx_host_sds_ring *sds_ring = data;
2239 struct netxen_adapter *adapter = sds_ring->adapter;
2240 u32 status = 0;
2241
2242 status = readl(adapter->isr_int_vec);
2243
2244 if (!(status & adapter->int_vec_bit))
2245 return IRQ_NONE;
2246
2247 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2248 /* check interrupt state machine, to be sure */
2249 status = readl(adapter->crb_int_state_reg);
2250 if (!ISR_LEGACY_INT_TRIGGERED(status))
2251 return IRQ_NONE;
2252
2253 } else {
2254 unsigned long our_int = 0;
2255
2256 our_int = readl(adapter->crb_int_state_reg);
2257
2258 /* not our interrupt */
2259 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2260 return IRQ_NONE;
2261
2262 /* claim interrupt */
2263 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2264
2265 /* clear interrupt */
2266 netxen_nic_disable_int(sds_ring);
2267 }
2268
2269 writel(0xffffffff, adapter->tgt_status_reg);
2270 /* read twice to ensure write is flushed */
2271 readl(adapter->isr_int_vec);
2272 readl(adapter->isr_int_vec);
2273
2274 napi_schedule(&sds_ring->napi);
2275
2276 return IRQ_HANDLED;
2277}
2278
2279static irqreturn_t netxen_msi_intr(int irq, void *data)
2280{
2281 struct nx_host_sds_ring *sds_ring = data;
2282 struct netxen_adapter *adapter = sds_ring->adapter;
2283
2284 /* clear interrupt */
2285 writel(0xffffffff, adapter->tgt_status_reg);
2286
2287 napi_schedule(&sds_ring->napi);
2288 return IRQ_HANDLED;
2289}
2290
2291static irqreturn_t netxen_msix_intr(int irq, void *data)
2292{
2293 struct nx_host_sds_ring *sds_ring = data;
2294
2295 napi_schedule(&sds_ring->napi);
2296 return IRQ_HANDLED;
2297}
2298
2299static int netxen_nic_poll(struct napi_struct *napi, int budget)
2300{
2301 struct nx_host_sds_ring *sds_ring =
2302 container_of(napi, struct nx_host_sds_ring, napi);
2303
2304 struct netxen_adapter *adapter = sds_ring->adapter;
2305
2306 int tx_complete;
2307 int work_done;
2308
2309 tx_complete = netxen_process_cmd_ring(adapter);
2310
2311 work_done = netxen_process_rcv_ring(sds_ring, budget);
2312
2313 if ((work_done < budget) && tx_complete) {
2314 napi_complete(&sds_ring->napi);
2315 if (test_bit(__NX_DEV_UP, &adapter->state))
2316 netxen_nic_enable_int(sds_ring);
2317 }
2318
2319 return work_done;
2320}
2321
2322#ifdef CONFIG_NET_POLL_CONTROLLER
2323static void netxen_nic_poll_controller(struct net_device *netdev)
2324{
2325 int ring;
2326 struct nx_host_sds_ring *sds_ring;
2327 struct netxen_adapter *adapter = netdev_priv(netdev);
2328 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2329
2330 disable_irq(adapter->irq);
2331 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2332 sds_ring = &recv_ctx->sds_rings[ring];
2333 netxen_intr(adapter->irq, sds_ring);
2334 }
2335 enable_irq(adapter->irq);
2336}
2337#endif
2338
2339static int
2340nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2341{
2342 int count;
2343 if (netxen_api_lock(adapter))
2344 return -EIO;
2345
2346 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2347
2348 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2349
2350 netxen_api_unlock(adapter);
2351 return count;
2352}
2353
2354static int
2355nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2356{
2357 int count, state;
2358 if (netxen_api_lock(adapter))
2359 return -EIO;
2360
2361 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2362 WARN_ON(count == 0);
2363
2364 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2365 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2366
2367 if (count == 0 && state != NX_DEV_FAILED)
2368 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2369
2370 netxen_api_unlock(adapter);
2371 return count;
2372}
2373
2374static int
2375nx_dev_request_aer(struct netxen_adapter *adapter)
2376{
2377 u32 state;
2378 int ret = -EINVAL;
2379
2380 if (netxen_api_lock(adapter))
2381 return ret;
2382
2383 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2384
2385 if (state == NX_DEV_NEED_AER)
2386 ret = 0;
2387 else if (state == NX_DEV_READY) {
2388 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2389 ret = 0;
2390 }
2391
2392 netxen_api_unlock(adapter);
2393 return ret;
2394}
2395
2396int
2397nx_dev_request_reset(struct netxen_adapter *adapter)
2398{
2399 u32 state;
2400 int ret = -EINVAL;
2401
2402 if (netxen_api_lock(adapter))
2403 return ret;
2404
2405 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2406
2407 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2408 ret = 0;
2409 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2410 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2411 adapter->flags |= NETXEN_FW_RESET_OWNER;
2412 ret = 0;
2413 }
2414
2415 netxen_api_unlock(adapter);
2416
2417 return ret;
2418}
2419
2420static int
2421netxen_can_start_firmware(struct netxen_adapter *adapter)
2422{
2423 int count;
2424 int can_start = 0;
2425
2426 if (netxen_api_lock(adapter)) {
2427 nx_incr_dev_ref_cnt(adapter);
2428 return -1;
2429 }
2430
2431 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2432
2433 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2434 count = 0;
2435
2436 if (count == 0) {
2437 can_start = 1;
2438 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2439 }
2440
2441 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2442
2443 netxen_api_unlock(adapter);
2444
2445 return can_start;
2446}
2447
2448static void
2449netxen_schedule_work(struct netxen_adapter *adapter,
2450 work_func_t func, int delay)
2451{
2452 INIT_DELAYED_WORK(&adapter->fw_work, func);
2453 schedule_delayed_work(&adapter->fw_work, delay);
2454}
2455
2456static void
2457netxen_cancel_fw_work(struct netxen_adapter *adapter)
2458{
2459 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2460 msleep(10);
2461
2462 cancel_delayed_work_sync(&adapter->fw_work);
2463}
2464
2465static void
2466netxen_attach_work(struct work_struct *work)
2467{
2468 struct netxen_adapter *adapter = container_of(work,
2469 struct netxen_adapter, fw_work.work);
2470 struct net_device *netdev = adapter->netdev;
2471 int err = 0;
2472
2473 if (netif_running(netdev)) {
2474 err = netxen_nic_attach(adapter);
2475 if (err)
2476 goto done;
2477
2478 err = netxen_nic_up(adapter, netdev);
2479 if (err) {
2480 netxen_nic_detach(adapter);
2481 goto done;
2482 }
2483
2484 netxen_restore_indev_addr(netdev, NETDEV_UP);
2485 }
2486
2487 netif_device_attach(netdev);
2488
2489done:
2490 adapter->fw_fail_cnt = 0;
2491 clear_bit(__NX_RESETTING, &adapter->state);
2492 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2493}
2494
2495static void
2496netxen_fwinit_work(struct work_struct *work)
2497{
2498 struct netxen_adapter *adapter = container_of(work,
2499 struct netxen_adapter, fw_work.work);
2500 int dev_state;
2501 int count;
2502 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2503 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2504 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2505 WARN_ON(count == 0);
2506 if (count == 1) {
2507 if (adapter->mdump.md_enabled) {
2508 rtnl_lock();
2509 netxen_dump_fw(adapter);
2510 rtnl_unlock();
2511 }
2512 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2513 if (netxen_api_lock(adapter)) {
2514 clear_bit(__NX_RESETTING, &adapter->state);
2515 NXWR32(adapter, NX_CRB_DEV_STATE,
2516 NX_DEV_FAILED);
2517 return;
2518 }
2519 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2520 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2521 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2522 dev_state = NX_DEV_COLD;
2523 netxen_api_unlock(adapter);
2524 }
2525 }
2526
2527 switch (dev_state) {
2528 case NX_DEV_COLD:
2529 case NX_DEV_READY:
2530 if (!netxen_start_firmware(adapter)) {
2531 netxen_schedule_work(adapter, netxen_attach_work, 0);
2532 return;
2533 }
2534 break;
2535
2536 case NX_DEV_NEED_RESET:
2537 case NX_DEV_INITALIZING:
2538 netxen_schedule_work(adapter,
2539 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2540 return;
2541
2542 case NX_DEV_FAILED:
2543 default:
2544 nx_incr_dev_ref_cnt(adapter);
2545 break;
2546 }
2547
2548 if (netxen_api_lock(adapter)) {
2549 clear_bit(__NX_RESETTING, &adapter->state);
2550 return;
2551 }
2552 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2553 netxen_api_unlock(adapter);
2554 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2555 adapter->netdev->name);
2556
2557 clear_bit(__NX_RESETTING, &adapter->state);
2558}
2559
2560static void
2561netxen_detach_work(struct work_struct *work)
2562{
2563 struct netxen_adapter *adapter = container_of(work,
2564 struct netxen_adapter, fw_work.work);
2565 struct net_device *netdev = adapter->netdev;
2566 int ref_cnt = 0, delay;
2567 u32 status;
2568
2569 netif_device_detach(netdev);
2570
2571 netxen_nic_down(adapter, netdev);
2572
2573 rtnl_lock();
2574 netxen_nic_detach(adapter);
2575 rtnl_unlock();
2576
2577 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2578
2579 if (status & NX_RCODE_FATAL_ERROR)
2580 goto err_ret;
2581
2582 if (adapter->temp == NX_TEMP_PANIC)
2583 goto err_ret;
2584
2585 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2586 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2587
2588 if (ref_cnt == -EIO)
2589 goto err_ret;
2590
2591 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2592
2593 adapter->fw_wait_cnt = 0;
2594 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2595
2596 return;
2597
2598err_ret:
2599 clear_bit(__NX_RESETTING, &adapter->state);
2600}
2601
2602static int
2603netxen_check_health(struct netxen_adapter *adapter)
2604{
2605 u32 state, heartbit;
2606 u32 peg_status;
2607 struct net_device *netdev = adapter->netdev;
2608
2609 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2610 if (state == NX_DEV_NEED_AER)
2611 return 0;
2612
2613 if (netxen_nic_check_temp(adapter))
2614 goto detach;
2615
2616 if (adapter->need_fw_reset) {
2617 if (nx_dev_request_reset(adapter))
2618 return 0;
2619 goto detach;
2620 }
2621
2622 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2623 * 1. Tx timeout 2. Fw hang
2624 * Send request to destroy context in case of tx timeout only
2625 * and doesn't required in case of Fw hang
2626 */
2627 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2628 adapter->need_fw_reset = 1;
2629 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2630 goto detach;
2631 }
2632
2633 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2634 return 0;
2635
2636 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2637 if (heartbit != adapter->heartbit) {
2638 adapter->heartbit = heartbit;
2639 adapter->fw_fail_cnt = 0;
2640 if (adapter->need_fw_reset)
2641 goto detach;
2642 return 0;
2643 }
2644
2645 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2646 return 0;
2647
2648 if (nx_dev_request_reset(adapter))
2649 return 0;
2650
2651 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2652
2653 dev_err(&netdev->dev, "firmware hang detected\n");
2654 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2655 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2656 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2657 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2658 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2659 "PEG_NET_4_PC: 0x%x\n",
2660 peg_status,
2661 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2662 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2663 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2664 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2665 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2666 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2667 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2668 dev_err(&adapter->pdev->dev,
2669 "Firmware aborted with error code 0x00006700. "
2670 "Device is being reset.\n");
2671detach:
2672 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2673 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2674 netxen_schedule_work(adapter, netxen_detach_work, 0);
2675 return 1;
2676}
2677
2678static void
2679netxen_fw_poll_work(struct work_struct *work)
2680{
2681 struct netxen_adapter *adapter = container_of(work,
2682 struct netxen_adapter, fw_work.work);
2683
2684 if (test_bit(__NX_RESETTING, &adapter->state))
2685 goto reschedule;
2686
2687 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2688 if (!adapter->has_link_events) {
2689
2690 netxen_nic_handle_phy_intr(adapter);
2691
2692 if (adapter->link_changed)
2693 netxen_nic_set_link_parameters(adapter);
2694 }
2695 }
2696
2697 if (netxen_check_health(adapter))
2698 return;
2699
2700reschedule:
2701 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2702}
2703
2704static ssize_t
2705netxen_store_bridged_mode(struct device *dev,
2706 struct device_attribute *attr, const char *buf, size_t len)
2707{
2708 struct net_device *net = to_net_dev(dev);
2709 struct netxen_adapter *adapter = netdev_priv(net);
2710 unsigned long new;
2711 int ret = -EINVAL;
2712
2713 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2714 goto err_out;
2715
2716 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2717 goto err_out;
2718
2719 if (strict_strtoul(buf, 2, &new))
2720 goto err_out;
2721
2722 if (!netxen_config_bridged_mode(adapter, !!new))
2723 ret = len;
2724
2725err_out:
2726 return ret;
2727}
2728
2729static ssize_t
2730netxen_show_bridged_mode(struct device *dev,
2731 struct device_attribute *attr, char *buf)
2732{
2733 struct net_device *net = to_net_dev(dev);
2734 struct netxen_adapter *adapter;
2735 int bridged_mode = 0;
2736
2737 adapter = netdev_priv(net);
2738
2739 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2740 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2741
2742 return sprintf(buf, "%d\n", bridged_mode);
2743}
2744
2745static struct device_attribute dev_attr_bridged_mode = {
2746 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2747 .show = netxen_show_bridged_mode,
2748 .store = netxen_store_bridged_mode,
2749};
2750
2751static ssize_t
2752netxen_store_diag_mode(struct device *dev,
2753 struct device_attribute *attr, const char *buf, size_t len)
2754{
2755 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2756 unsigned long new;
2757
2758 if (strict_strtoul(buf, 2, &new))
2759 return -EINVAL;
2760
2761 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2762 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2763
2764 return len;
2765}
2766
2767static ssize_t
2768netxen_show_diag_mode(struct device *dev,
2769 struct device_attribute *attr, char *buf)
2770{
2771 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2772
2773 return sprintf(buf, "%d\n",
2774 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2775}
2776
2777static struct device_attribute dev_attr_diag_mode = {
2778 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2779 .show = netxen_show_diag_mode,
2780 .store = netxen_store_diag_mode,
2781};
2782
2783static int
2784netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2785 loff_t offset, size_t size)
2786{
2787 size_t crb_size = 4;
2788
2789 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2790 return -EIO;
2791
2792 if (offset < NETXEN_PCI_CRBSPACE) {
2793 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2794 return -EINVAL;
2795
2796 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2797 NETXEN_PCI_CAMQM_2M_END))
2798 crb_size = 8;
2799 else
2800 return -EINVAL;
2801 }
2802
2803 if ((size != crb_size) || (offset & (crb_size-1)))
2804 return -EINVAL;
2805
2806 return 0;
2807}
2808
2809static ssize_t
2810netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2811 struct bin_attribute *attr,
2812 char *buf, loff_t offset, size_t size)
2813{
2814 struct device *dev = container_of(kobj, struct device, kobj);
2815 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2816 u32 data;
2817 u64 qmdata;
2818 int ret;
2819
2820 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2821 if (ret != 0)
2822 return ret;
2823
2824 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2825 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2826 NETXEN_PCI_CAMQM_2M_END)) {
2827 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2828 memcpy(buf, &qmdata, size);
2829 } else {
2830 data = NXRD32(adapter, offset);
2831 memcpy(buf, &data, size);
2832 }
2833
2834 return size;
2835}
2836
2837static ssize_t
2838netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2839 struct bin_attribute *attr,
2840 char *buf, loff_t offset, size_t size)
2841{
2842 struct device *dev = container_of(kobj, struct device, kobj);
2843 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2844 u32 data;
2845 u64 qmdata;
2846 int ret;
2847
2848 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2849 if (ret != 0)
2850 return ret;
2851
2852 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2853 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2854 NETXEN_PCI_CAMQM_2M_END)) {
2855 memcpy(&qmdata, buf, size);
2856 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2857 } else {
2858 memcpy(&data, buf, size);
2859 NXWR32(adapter, offset, data);
2860 }
2861
2862 return size;
2863}
2864
2865static int
2866netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2867 loff_t offset, size_t size)
2868{
2869 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2870 return -EIO;
2871
2872 if ((size != 8) || (offset & 0x7))
2873 return -EIO;
2874
2875 return 0;
2876}
2877
2878static ssize_t
2879netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2880 struct bin_attribute *attr,
2881 char *buf, loff_t offset, size_t size)
2882{
2883 struct device *dev = container_of(kobj, struct device, kobj);
2884 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2885 u64 data;
2886 int ret;
2887
2888 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2889 if (ret != 0)
2890 return ret;
2891
2892 if (adapter->pci_mem_read(adapter, offset, &data))
2893 return -EIO;
2894
2895 memcpy(buf, &data, size);
2896
2897 return size;
2898}
2899
2900static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2901 struct bin_attribute *attr, char *buf,
2902 loff_t offset, size_t size)
2903{
2904 struct device *dev = container_of(kobj, struct device, kobj);
2905 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2906 u64 data;
2907 int ret;
2908
2909 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2910 if (ret != 0)
2911 return ret;
2912
2913 memcpy(&data, buf, size);
2914
2915 if (adapter->pci_mem_write(adapter, offset, data))
2916 return -EIO;
2917
2918 return size;
2919}
2920
2921
2922static struct bin_attribute bin_attr_crb = {
2923 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2924 .size = 0,
2925 .read = netxen_sysfs_read_crb,
2926 .write = netxen_sysfs_write_crb,
2927};
2928
2929static struct bin_attribute bin_attr_mem = {
2930 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2931 .size = 0,
2932 .read = netxen_sysfs_read_mem,
2933 .write = netxen_sysfs_write_mem,
2934};
2935
2936static ssize_t
2937netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2938 struct bin_attribute *attr,
2939 char *buf, loff_t offset, size_t size)
2940{
2941 struct device *dev = container_of(kobj, struct device, kobj);
2942 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2943 struct net_device *netdev = adapter->netdev;
2944 struct netxen_dimm_cfg dimm;
2945 u8 dw, rows, cols, banks, ranks;
2946 u32 val;
2947
2948 if (size != sizeof(struct netxen_dimm_cfg)) {
2949 netdev_err(netdev, "Invalid size\n");
2950 return -1;
2951 }
2952
2953 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
2954 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
2955
2956 /* Checks if DIMM info is valid. */
2957 if (val & NETXEN_DIMM_VALID_FLAG) {
2958 netdev_err(netdev, "Invalid DIMM flag\n");
2959 dimm.presence = 0xff;
2960 goto out;
2961 }
2962
2963 rows = NETXEN_DIMM_NUMROWS(val);
2964 cols = NETXEN_DIMM_NUMCOLS(val);
2965 ranks = NETXEN_DIMM_NUMRANKS(val);
2966 banks = NETXEN_DIMM_NUMBANKS(val);
2967 dw = NETXEN_DIMM_DATAWIDTH(val);
2968
2969 dimm.presence = (val & NETXEN_DIMM_PRESENT);
2970
2971 /* Checks if DIMM info is present. */
2972 if (!dimm.presence) {
2973 netdev_err(netdev, "DIMM not present\n");
2974 goto out;
2975 }
2976
2977 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
2978
2979 switch (dimm.dimm_type) {
2980 case NETXEN_DIMM_TYPE_RDIMM:
2981 case NETXEN_DIMM_TYPE_UDIMM:
2982 case NETXEN_DIMM_TYPE_SO_DIMM:
2983 case NETXEN_DIMM_TYPE_Micro_DIMM:
2984 case NETXEN_DIMM_TYPE_Mini_RDIMM:
2985 case NETXEN_DIMM_TYPE_Mini_UDIMM:
2986 break;
2987 default:
2988 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
2989 goto out;
2990 }
2991
2992 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
2993 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
2994 else
2995 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
2996
2997 if (val & NETXEN_DIMM_SIZE) {
2998 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
2999 goto out;
3000 }
3001
3002 if (!rows) {
3003 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3004 goto out;
3005 }
3006
3007 if (!cols) {
3008 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3009 goto out;
3010 }
3011
3012 if (!banks) {
3013 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3014 goto out;
3015 }
3016
3017 ranks += 1;
3018
3019 switch (dw) {
3020 case 0x0:
3021 dw = 32;
3022 break;
3023 case 0x1:
3024 dw = 33;
3025 break;
3026 case 0x2:
3027 dw = 36;
3028 break;
3029 case 0x3:
3030 dw = 64;
3031 break;
3032 case 0x4:
3033 dw = 72;
3034 break;
3035 case 0x5:
3036 dw = 80;
3037 break;
3038 case 0x6:
3039 dw = 128;
3040 break;
3041 case 0x7:
3042 dw = 144;
3043 break;
3044 default:
3045 netdev_err(netdev, "Invalid data-width %x\n", dw);
3046 goto out;
3047 }
3048
3049 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3050 /* Size returned in MB. */
3051 dimm.size = (dimm.size) / 0x100000;
3052out:
3053 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3054 return sizeof(struct netxen_dimm_cfg);
3055
3056}
3057
3058static struct bin_attribute bin_attr_dimm = {
3059 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3060 .size = 0,
3061 .read = netxen_sysfs_read_dimm,
3062};
3063
3064
3065static void
3066netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3067{
3068 struct device *dev = &adapter->pdev->dev;
3069
3070 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3071 /* bridged_mode control */
3072 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3073 dev_warn(dev,
3074 "failed to create bridged_mode sysfs entry\n");
3075 }
3076 }
3077}
3078
3079static void
3080netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3081{
3082 struct device *dev = &adapter->pdev->dev;
3083
3084 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3085 device_remove_file(dev, &dev_attr_bridged_mode);
3086}
3087
3088static void
3089netxen_create_diag_entries(struct netxen_adapter *adapter)
3090{
3091 struct pci_dev *pdev = adapter->pdev;
3092 struct device *dev;
3093
3094 dev = &pdev->dev;
3095 if (device_create_file(dev, &dev_attr_diag_mode))
3096 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3097 if (device_create_bin_file(dev, &bin_attr_crb))
3098 dev_info(dev, "failed to create crb sysfs entry\n");
3099 if (device_create_bin_file(dev, &bin_attr_mem))
3100 dev_info(dev, "failed to create mem sysfs entry\n");
3101 if (device_create_bin_file(dev, &bin_attr_dimm))
3102 dev_info(dev, "failed to create dimm sysfs entry\n");
3103}
3104
3105
3106static void
3107netxen_remove_diag_entries(struct netxen_adapter *adapter)
3108{
3109 struct pci_dev *pdev = adapter->pdev;
3110 struct device *dev = &pdev->dev;
3111
3112 device_remove_file(dev, &dev_attr_diag_mode);
3113 device_remove_bin_file(dev, &bin_attr_crb);
3114 device_remove_bin_file(dev, &bin_attr_mem);
3115 device_remove_bin_file(dev, &bin_attr_dimm);
3116}
3117
3118#ifdef CONFIG_INET
3119
3120#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3121
3122static int
3123netxen_destip_supported(struct netxen_adapter *adapter)
3124{
3125 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3126 return 0;
3127
3128 if (adapter->ahw.cut_through)
3129 return 0;
3130
3131 return 1;
3132}
3133
3134static void
3135netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
3136{
3137 struct nx_vlan_ip_list *cur;
3138 struct list_head *head = &adapter->vlan_ip_list;
3139
3140 while (!list_empty(head)) {
3141 cur = list_entry(head->next, struct nx_vlan_ip_list, list);
3142 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3143 list_del(&cur->list);
3144 kfree(cur);
3145 }
3146
3147}
3148static void
3149netxen_list_config_vlan_ip(struct netxen_adapter *adapter,
3150 struct in_ifaddr *ifa, unsigned long event)
3151{
3152 struct net_device *dev;
3153 struct nx_vlan_ip_list *cur, *tmp_cur;
3154 struct list_head *head;
3155
3156 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3157
3158 if (dev == NULL)
3159 return;
3160
3161 if (!is_vlan_dev(dev))
3162 return;
3163
3164 switch (event) {
3165 case NX_IP_UP:
3166 list_for_each(head, &adapter->vlan_ip_list) {
3167 cur = list_entry(head, struct nx_vlan_ip_list, list);
3168
3169 if (cur->ip_addr == ifa->ifa_address)
3170 return;
3171 }
3172
3173 cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC);
3174 if (cur == NULL) {
3175 printk(KERN_ERR "%s: failed to add vlan ip to list\n",
3176 adapter->netdev->name);
3177 return;
3178 }
3179
3180 cur->ip_addr = ifa->ifa_address;
3181 list_add_tail(&cur->list, &adapter->vlan_ip_list);
3182 break;
3183 case NX_IP_DOWN:
3184 list_for_each_entry_safe(cur, tmp_cur,
3185 &adapter->vlan_ip_list, list) {
3186 if (cur->ip_addr == ifa->ifa_address) {
3187 list_del(&cur->list);
3188 kfree(cur);
3189 break;
3190 }
3191 }
3192 }
3193}
3194static void
3195netxen_config_indev_addr(struct netxen_adapter *adapter,
3196 struct net_device *dev, unsigned long event)
3197{
3198 struct in_device *indev;
3199
3200 if (!netxen_destip_supported(adapter))
3201 return;
3202
3203 indev = in_dev_get(dev);
3204 if (!indev)
3205 return;
3206
3207 for_ifa(indev) {
3208 switch (event) {
3209 case NETDEV_UP:
3210 netxen_config_ipaddr(adapter,
3211 ifa->ifa_address, NX_IP_UP);
3212 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
3213 break;
3214 case NETDEV_DOWN:
3215 netxen_config_ipaddr(adapter,
3216 ifa->ifa_address, NX_IP_DOWN);
3217 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
3218 break;
3219 default:
3220 break;
3221 }
3222 } endfor_ifa(indev);
3223
3224 in_dev_put(indev);
3225}
3226
3227static void
3228netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3229
3230{
3231 struct netxen_adapter *adapter = netdev_priv(netdev);
3232 struct nx_vlan_ip_list *pos, *tmp_pos;
3233 unsigned long ip_event;
3234
3235 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3236 netxen_config_indev_addr(adapter, netdev, event);
3237
3238 list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) {
3239 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3240 }
3241}
3242
3243static int netxen_netdev_event(struct notifier_block *this,
3244 unsigned long event, void *ptr)
3245{
3246 struct netxen_adapter *adapter;
3247 struct net_device *dev = (struct net_device *)ptr;
3248 struct net_device *orig_dev = dev;
3249
3250recheck:
3251 if (dev == NULL)
3252 goto done;
3253
3254 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3255 dev = vlan_dev_real_dev(dev);
3256 goto recheck;
3257 }
3258
3259 if (!is_netxen_netdev(dev))
3260 goto done;
3261
3262 adapter = netdev_priv(dev);
3263
3264 if (!adapter)
3265 goto done;
3266
3267 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3268 goto done;
3269
3270 netxen_config_indev_addr(adapter, orig_dev, event);
3271done:
3272 return NOTIFY_DONE;
3273}
3274
3275static int
3276netxen_inetaddr_event(struct notifier_block *this,
3277 unsigned long event, void *ptr)
3278{
3279 struct netxen_adapter *adapter;
3280 struct net_device *dev;
3281
3282 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3283
3284 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3285
3286recheck:
3287 if (dev == NULL)
3288 goto done;
3289
3290 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3291 dev = vlan_dev_real_dev(dev);
3292 goto recheck;
3293 }
3294
3295 if (!is_netxen_netdev(dev))
3296 goto done;
3297
3298 adapter = netdev_priv(dev);
3299
3300 if (!adapter || !netxen_destip_supported(adapter))
3301 goto done;
3302
3303 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3304 goto done;
3305
3306 switch (event) {
3307 case NETDEV_UP:
3308 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3309 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
3310 break;
3311 case NETDEV_DOWN:
3312 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
3313 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
3314 break;
3315 default:
3316 break;
3317 }
3318
3319done:
3320 return NOTIFY_DONE;
3321}
3322
3323static struct notifier_block netxen_netdev_cb = {
3324 .notifier_call = netxen_netdev_event,
3325};
3326
3327static struct notifier_block netxen_inetaddr_cb = {
3328 .notifier_call = netxen_inetaddr_event,
3329};
3330#else
3331static void
3332netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3333{ }
3334static void
3335netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
3336{ }
3337#endif
3338
3339static struct pci_error_handlers netxen_err_handler = {
3340 .error_detected = netxen_io_error_detected,
3341 .slot_reset = netxen_io_slot_reset,
3342 .resume = netxen_io_resume,
3343};
3344
3345static struct pci_driver netxen_driver = {
3346 .name = netxen_nic_driver_name,
3347 .id_table = netxen_pci_tbl,
3348 .probe = netxen_nic_probe,
3349 .remove = __devexit_p(netxen_nic_remove),
3350#ifdef CONFIG_PM
3351 .suspend = netxen_nic_suspend,
3352 .resume = netxen_nic_resume,
3353#endif
3354 .shutdown = netxen_nic_shutdown,
3355 .err_handler = &netxen_err_handler
3356};
3357
3358static int __init netxen_init_module(void)
3359{
3360 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3361
3362#ifdef CONFIG_INET
3363 register_netdevice_notifier(&netxen_netdev_cb);
3364 register_inetaddr_notifier(&netxen_inetaddr_cb);
3365#endif
3366 return pci_register_driver(&netxen_driver);
3367}
3368
3369module_init(netxen_init_module);
3370
3371static void __exit netxen_exit_module(void)
3372{
3373 pci_unregister_driver(&netxen_driver);
3374
3375#ifdef CONFIG_INET
3376 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3377 unregister_netdevice_notifier(&netxen_netdev_cb);
3378#endif
3379}
3380
3381module_exit(netxen_exit_module);